A system of naming periods of times, more specifically the dates. It is most often synchronized with the movement of the astronomical objects, especially the Sun and the Moon, based on which a number of religious calendars have been in practice. Calendar in simple terms refers to the series of planned activities of any event.

ISO 8601. The 24 hour clock system is used in the ISO 8601 dating system.

Gregorian Calendar.

Because, it is named after Pope Gregory XIII, who decreed the following of this calendar.

24.2.1582.

It is an adaptation from its predecessor, the Julian Calendar with 365 days in normal year and 366 days in the leap year. It came into effect from 24.2.1582, by the decree of Pope Paul Gregory XIII (thus the calendar named after him). The proposal for adoption was given by Aloysius Lilius, an Italian Doctor. The years are numbered from the traditional birth year of Jesus - called "Anna Domini" - AD. It is also called the Common Era - CE - or Christian Era . Anything to denote before this is BCE - Before Christian Era. The Gregorian Calendar is an arithmetical calendar. It counts days as the basic unit of time, grouping them into years of 365/366 days. Being a solar calendar, it repeats completely for every 146097 days=400 years=20871 weeks. Of these 400 years, 303 are common and 97 are leap years. This is how the Average length of an year - 365 days, 5 Hrs, 49 minutes and 12 seconds has been arrived at. The Gregorian Calendar has been devised as such because, the Julian Calendar was slightly too long, causing the vernal equinox to slowly drift backwards in the calendar year and also the Lunar calendar used to compute the date of Easter, had grown conspicuously in error as well. Most countries adopted this from 24.2.1582.

1752 - obviously it came into effect in India by the same period.

Luni Solar, Solar and Lunar.

Tropical Year: Also called the Solar Year, which is the length of time, the Sun, as seen from the Earth, takes to return to the same position along the Ecliptic path relative to the equinoxes and solstices.
Side Real Year: It is the time taken for the Sun to return to the same position with respect to the stars of the celestial sphere. It is the orbital period of earth, equal to 365.2563042 mean solar days. The side real year is 20 minutes and 24 seconds longer than the tropical year.

A calendar in many cultures whose date indicates both moon phase and the time of the solar year. If the solar year defined as a tropical year, then a Luni Solar Calendar will give an indication of the season; If it is taken as a Side Real Year, then the calendar will predict the constellation near which The full moon may occur. Usually, there is an additional requirement that the year has a whole number of months, in which case most years have 12 months, but every second or third year may have 13 months.

Buddhist, Hebrew, Chinese and Tibetan Calendar.

A calendar whose dates indicate the position of the earth on its revolution around the Sun - or - equivalently the apparent position of the Sun moving on the celestial sphere. Each solar day is assigned to the sunrise to sunset.

1. Gregorian Calendar, 2. Julian Calendar, 3. Bahai', I Calendar, 4. Iranian Calendar, 5. Malayalam Calendar, 6. Tamil Calendar,7. Thai Solar Calendar, 8. Bengali Calendar.

A calendar in many cultures that is oriented at the moon phase. This is Normally done by having a month which corresponds to a lunation, so that the day of month indicates the moon phase. If a calendar tracks the seasons, it is also Luni Solar Calendar. Since there are about 12 lunations in a solar year, this period 354.37 days is Sometimes referred to as Lunar Year - corresponding to 13 side real months 355.18 days. Most Lunar Calendars are also Luni Solar like the Chinese, Hebrew and Hindu.

Islamic Calendar - which always consists of 12 lunations. As a result of this, It is mostly used for religious purposes, along side a secular solar calendar. Islamic celebrations perform a full circle with respect to the seasons every 33 or 34 Islamic years or 32/33 solar years.

The Official Civil Calendar used in our country is SAKA Calendar, based on the Saka Era or Shalivaghana Era. This calendar is used in more formal purposes like Gazette of India, Government Publication, All India Radio etc., However, Gregorian Calendar is used more widely and prominently.

It was introduced from the year 78AD. Thus, if we are in 2009 AD of Gregorian calendar, then the Saka Ear Calendar will be 1931,(2009-78 = 1931).

Shalivaghana - a king of the Satavahana Kingdom of the ancient days.

22.3.1957 corresponding to Chaitra 1, 1879.

Luni Solar Calendar.

It is in use since ancient times, but has undergone many changes due to regionalism and there are different regional calendars like Tamil, Bengali, Malayalam etc., etc., although all of them are Hindu Calendars. Aryabhatta in the 6th Century, Varahamitra in the 7th century and Bhaskara in the 12th century were the principal astronomers who have Contributed immensely to the reformations. ( As there are different variants in the Hindu Calendar, only the uniform Salient features are discussed here).

1. Thithi, 2. Vaasara, 3. Nakshatr, 4. Yoga and 5. Karana. These five Aspects are called PANCHANGA (Panch = five and Anga = aspects) and that is why Hindu calendars are called Panchanga(m)s.

The sky taken as a circle of 360 degree and divided into 30 parts of 12 degree each. The time spent by the moon in each of these 12 degree path is called one thithi.

The 30 parts of Thithis are divided into two parts of 15 thithis, known as "Pakshas". The brighter part is called "Shukla Paksha" (New Moon to FullMoon) and the darker part is called "Krishna Paksha" (Full Moon to New Moon). The 15th thithi of the darker fornight is called "Amavasya" and the 15th thithi of the brighter fortnight is called "Poornima" or "Pournami" etc.The thithi in which the sunrise takes place is taken to be the thithi of the day.

Meaning "Stars". The Ecliptic is divided into 27 Nakshatrams - called by different names of Lunar Houses. These reflect the moon's cycle against the fixed stars - 27 days and 7 3/4 hours. Each Nakshtra by name, correspond with the region of the sky. The nakshatra at which the sun rises will be the nakshatra for the day.

The computation of Yoga involves the dividing the sum of the longitudes of the Sun and the Moon, into 27 parts. Thus there are 27 yogas by different names. Thus there are 27 yogas by different names. The yoga at which the Sun rises will be the Yoga for the day.

It is half of a thithi. Though arithmetically there should be 60 maranas, in practice 11 Karana are only followed with four fixed and 7 rotating Karanas. The first half of the first thithi is a fixed one, next comes the 7 rotating thithis, each rotating 8 times to make up 56 Karanas and the last three fixed Karanas to make it 60. The Karana active at the time of Sunrise is the Karana of the day.

1. Chaitra, 2. Vaisakha, 3. Jyaishta, 4. Asadha, 5.Shravana, 6. Bhadrapad, 7. Ashwin, 8. Kartik, 9. Maghashirsha, 10. Paush, 11. Magh, 12. Phalgun. Based on the calculations mentioned in the foregoing paras, the Hindu festivals are decided and Horoscopes for new born babies are drawn.

It is a lunar calendar, having 12 months of 354 days, making an year. It is also called HIJRI calendar - the first year from the occurrence of HIJRA (emigration) of prophet Muhammad to Medina. The Islamic Calendar, 11 days shorter than the Gregorian Calendar. Therefore all the Islamic festivals occurring on the scheduled dates as per its calendar, will have a shift of 11 days earlier, in each successive solar year.

1. Muharram, 2. Jumada-al-awwal, 3. Rabi al Awwal, 4. Rabi al Thani, 5. Jumada al Awwal, 6. Jumada al Thani, 7. Rajab, 8. Sha'aban, 9. Ramadaan, 10. Shawwal, 11. Dhu al Qidah, 12. Dhu al Hijjah.

Also called the "Badi" calendar, used by Bahai'i sect of the Islamic people, having 365/366 days. But, unlike other calendars, this calendar has 19 months of 19 days each with 4/5 inter calary days. The first year of Bahai'i ear began with 21st March 1844, thus it is in its 168/169th year of use as of 2011. Introduced by Bahaullah the founder, on the Vernal Equinox Day. The day the year begins is called "Nauroz".

A solar calendar came into use in 593/594 AD (thus now running 1418/1419) used in Bengal, Bangladesh, Assam and Tripura. The 12 months are: 1. Bishaka, 2. Jeshto, 3. Osharho, 4. Shraban, 5. Bhadrapoda, 6. Oshshini, 7. Krittika, 8. Agraihon, 9. Pushto, 10. Moga, 11. Falguni, and 12. Chaitra (March-April). The first day of the year falls on April 14 (Bishaka=April/May) and called as" Poila Bhaishak ". The first five months carries 31 days and the remaining 7 months have 30 days. One day is added every four years in the month of Falguni (February).

A solar sidereal calendar and has commenced in 825 AD thus the current Malayalam year is 1186 (as of 2011). The Malayalam year starts around the mid August called the "Vishu" a Festival. The Malayalam year has 365/366 days. The names of the months are: 1.Chingam, 2.Kanni, 3. Thulam, 4. Vrichikam, 5. Dhanu, 6. Makaram, 7. Kumbham, 8. Meenam, 9. Medom, 10. Edavam, 11.Midhunam, 12.Karkidakam. "Ashcha" meaning "Day" is always suffixed with the names of the weekdays.

A solar sidereal calendar used by Tamilians of Tamilnadu, Malaysia, Singapore, and Sri Lanka. The new year known as " Varusha Pirappu" or "Puththandu" begins around April 14 of the Gregorian Calendar and it has a 60 year cycle of rotation. The names of the months are: 1. Chithira, 2. Vaikasi, 3. Aani, 4. Aadi, 5. Aavani, 6. Purattasi, 7. Aippasi, 8. Karthigai, 9. Marghazhi, 10. Thai, 11. Maasi, 12. Panguni. The weekdays are suffixed with "Kizhamai" (meaning day) and each day is named after the planets.

It is called the "Nana Shahi" calendar, designed by Pali Singh Purewal and accounted from the first birth day of first Sikh Guru Nanak Dev, thus running into its 542nd year (as of 2011). The new year of the Sikhs fall on the 14th March. Names of the months are: 1. Chet,2. Vaisakh, 3. Jeth, 4. Harh, 5. Sawan, 6. Bhadon, 7. Assu, 8. Katak, 9. Maghar, 10. Poh, 11. Magh, 12. Phagun (February - March).The first four months have 31 days and the other months have 30 days, with the last month Phagun getting a day extra every fourth year.

Telugu, Kannada, Sindhi and Maharashtrians follow the Hindu calendar, thus their new year falling in Mid March. Oriya people follow the calendar similar to Tamil Calendar.

A Luni Solar calendar having months alternatively 29/30 days, with an intercalated day and a 30 day month added at regular intervals. This calendar is based on the ancient Surya Siddhanta. Names of the months are similar to the Hindu calendar.

Introduced by Indian emperor Vikramaaditya, it is called Bikram Samwat or Sambat in Nepal. It is about 57 years ahead of the Gregorian Calendar.The beginning of the New Year falls around 13th/14th April. Names of the months are similar to the months followed in the Eastern states. The days of the months vary from 29 to 32 days.

A lunisolar calendar called "Yang" used mainly for deciding domestic functions and festivals. Otherwise Gregorian calendar is followed. The uniqueness of Chinese calendar is that the years are named after animals viz: Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Sheep, Monkey, Rooster, Dog and Boar (Pig).Presently the Chinese traditional year is 4708 and is the year of Rabbit. Likewise, the Chinese Zodiac signs are named after agricultural properties Such as spring, rain, grains, summer etc.,

A lunisolar calendar. As there is a difference of 11 days between twelve lunar months and one solar year, the calendar repeats itself in a cycle of 19 years(235 lunar months) with an extra lunar month added once every two or three Years for a total of 7 times per 19 years. It has 12 months in the normal year and a 13th month, every second or third year as explained above. Days are "Yom" in Hebrew and the days are named by numbers (First =Sunday) and Saturday as "Sabbath" meaning rest.

It is more or less in line with a tropical solar calendar and is followed by Zoroastrians all over the world. Introduced by Ardashir I of Sassanid Empire, around 226-224 BC,it has undergone many a change due to Controversies over declaration of festivals, and holidays. In 1925, the Iranian Parliament passed a new Calendar, which has been widely accepted now. The modern day Iranian calendar is known as "Solar Hejri". Iranian New Year Day begins on 21st March of Gregorian Calendar. First six months of the year has 31 days, following 5 months will have 30 days and the last month will have 29 or 30 days according to normal or leap year. Iranian week starts on Saturday and ends on Friday. The names of the weekdays end with "ambe" for instance Saturday is "Yekshambe".

11 days - thus the Islamic festivals will have a shift of 11 days earlier in all the Gregorian calendars.

Bahai'i Calendar - also called as 'Badi Calendar".

Nepali - that means as of 2011, the Nepali year is 2068.

Chinese.

Jewish.

January and February - added to the Julian Calendar in 713 BCE.

February.

"Julian": Introduced by Julius Caesar from 45 BC, comprising of 365 days, 12 months and with a leap day in February, thus making it 365.25 days an year.
"Roman": It preceded the Julian. It was based on Lunar invented by Romulus the founder of Rome around 753 BC which was followed till 46 BC when Julian Calendar replaced it. It had only (4 x 31 and 6 x 30 days) for 304 days and 61 days of winter excluded. In 713 BC, King Numa Pompilus, added January with 29 days and
February with 28 days and reduced all the 30 days months to 29 days month, thus making a 12 months calendar of 355 days. This 355 days calendar was further
added with 10 days and made as 365 days by the Julian Calendar based on a variety of geographical reasons. Thus the Julian Calendar, later to be christened as
"Gregorian" came to be adopted in the later years - 1582.

Meaning "Day". Each day is named as:  1. Ravi (Sun) Vasara - Sunday;  2. Soma (Moon) Vasara - Monday;  3.Mangala (Mars) Vasara - Tuesday;  4. Budha (Mercury) - Wednesday;  5. Guru (Jupiter) Vasara - Thursday;  6. Shukla (Venus) Vasara - Friday;  and 7. Shani (Saturn) Vasara - Saturday.

SAKA MONTH -	NO. OF DAYS -	CORRESPONDING GREGORIAN DAY/MONTH
Chaitra *	30/31	March 21/22
Vaisakha	31	April 21
Jyaishta	31	May 22
Ashada	31	June 22
Sravana	31	July 23
Bhadra	31	August 23
Asvina	30	September 23
Kartika	30	October 23
Margha Shirsh	30	November 22
Pausa	30	December 22
Magha	30	January 21
Phalguna	30	February 20.

* In the leap years, Chaitra will have 31 days and so the year will start on March 21.
** Notable feature is the first five months getting 31 days continuously, unlike the Gregorian Calendar getting it alternatively or so.

The completion of an year of any event can be termed as an anniversary. Most of them have been named on Numerical basis and a few of them have been named on precious metals - calling them "Jubilees". They are as follows:

NUMERICAL NAME:	NO. OF YEARS
Annual	1
Biennial	2
Tricennial	3
Quadrennial	4
Quinquennial	5
Sexennial	6
Septennial	7
Octennial	8
Novennial	9
Decennial	10
Undecennial	11
Duodecennial	12
Tredecennial	13
Quattuordecennial	14
Vigintennial or Vicennial	20
Semicentennial/Quinquagenary	50
Semisesquicentennial	75
Centennial	100
Quasquicentennial	125
Sesquicentennial	150
Demisemiseptcentennial/Quartoseptcentennial	175
Bicentennial	200
Semiquincentennial	250
Tercentennial/Tricentennial	300
Semiseptcentennnial	350
Quadri centennial/Quarter Centennary	400
Quin Centennial	500
Sex Centennial	600
Septcentennial/Septua Centennial	700
Octo Centennial	800
Nona Centennial	900
Millenial/Millenium	1000
Bimillenial	2000
JUBILEE:	YEARS
Silver	25
Golden	50
Diamond	60
Platinum	75
Centenary	100

YEAR	NAME
1	Paper
2	Cotton
3	Leather
4	Linen, Silk
5	Wood
10	Tin
15	Crystal
20	China
25	Silver
30	Pearl
35	Coral
40	Ruby
45	Sapphire
50	Golden
60	Diamond
65	Blue Sapphire.

Janus - the Roman God of Door, Gates etc., The God has two faces, one looking back into the old year and the other looking forward into the new year. It starts on the same day of the week as October in common years and starts On the same day of the week as April and July in Leap Years. In a common year, January ends on the same day of the week as February and October and ends on the same day of the week as July in a leap year.

In 713 BCE - Earlier it was only ten months with March as the beginning. The Julian Calendar thus was made into 12 months.

Garnet and Galanthus respectively.

Capricorn - Aquarius.

Jan.1 New Year Day, Jan.13/14 Baisakhi (Harvest Festival), Pongal, Sankaranthi etc., Jan.26 Republic Day of India, Australia Day. Muharram - Islamic Festival.

713 BCE.

(1) The only month in the Gregorian Calendar to have less than 30 days and Also getting a day added to its normal 28 day, in the leap year. (2) Beginning and week days are the same as that of March and November. (3) In 1712, Sweden alone had 30 days.

Amethyst and Violet/Primrose respectively.

Aquarius - Pisces.

3--Chinese New Year
4--Independence Day of Sri Lanka
6--Waitangi Day - New Zealand
11--National Foundation Day - Japan
12--Abraham Lincoln Birth Day - USA
14--Valentine Day
21--International Mother Language Day
22--George Washington Birth Day.
26--Liberation Day in Kuwait
27--Dominican Republic Independence Day.
Holi - an important festival of North India falls in this month around 3rd week.

Ancient Roman festival - "Februa" when sinners confessed their sins and were forgiven.

MARS - the Roman God of War.

(1) Begins on the same day as that of November every year and as that of February in common years only. (2) Ends on the same day as that of June every year.

Aquamarine and Blood Stone and Daffodil respectively.

Pisces and Aries.

Telugu New Year Day, Mahavir Jayanthi, Mardi Gras, Ash Wednesday, Good Friday, St. David's Day, St. Joseph's Day, Easter and Nauroz Parsi New Year - all these festivals fall in March.
8--International Women's Day
14-- pi day in USA
22--World Water Day
23--Pakistan Day.
26--Bangladesh Independence Day
First Wednesday - World Maths Day.
Second Thursday - World Kidney Day.

No definite clues. However, it is believed that it could have been named after Aphrodite, the Greek Goddess of Love or it may be derived from Roman Verb "Aprire" which means to "Open" - indicating that the grounds open up in April when it is ploughed.

Begins as that of July in all years and ends as December every year.

Birth stone - Diamond Flowers - Daisy and Sweet Pea.

Aries and Taurus.

1--April Fools Day and Financial Year beginning.
4--Martin Luther King Jr. Assassination Day (1968)
7--World Health Day
8--Buddha Birth Day.
13-- Thailand, Laos, Myanmar - New Year Day.
14--Abraham Lincoln Assassination Day (1865)Titanic Ship Disaster (1912)
17--Independence Day - Syria.
20-- Birth day of Hitler
22--Earth Day
25-- Anzac Day in Australia and New Zealand.
26-- Chernobyl nuclear disaster (1986)
30--Death of Hitler.
Other festivals/important days falling in April is - Good Friday, Tamil New Year's Day, Vishu (Malayalam New Year).Third Monday of April - Boston Marathon Fourth Sunday of April - London Marathon.

MAIA - the Greek Goddess of Fertility, Plants, Wife of God Jupiter.

Emerald and Lily/Hawthorn respectively.

Aries - Taurus.

In this aspect, May is a unique month. No other month begins on the same day of the week as May. This month and June are the only two months that have this feature. The day of the week in which May begins in one year will be the same in the following year too. No other month ends on the same day of the week as May.

Brain Tumor Awareness and Skin Cancer awareness month.

1--May Day - Labour Day.
4--Liberation Day of Denmark and the Netherlands.
5--Children's Day in Japan, Europe Day.
9--Europe Day by European Union (formation day).
12-- International Nurses Day.
24-- Eritrea's Independence Day.
 Second Sunday - Mother's Day in USA and most other countries.
 Second Saturday - World Trade Fair Day.

Juno - wife of Jupiter, Roman Goddess and Queen of heaven.

Birth Stone - Pearl, Moonstone and Alexandrite Flower - Rose and Honey Suckle.

Gemini and Cancer.

No other month begins on the same day as that of June in any year. It ends on the same day as that of March every year.

Summer Solstice in the northern hemisphere and Winter Solstice in the Southern Hemisphere - occurring between June 20 and 22.

Wimbledon Tennis Championship - UK.

12--Philippines Independence Day
13--Donald Duck's birth day
17--Iceland Independence Day
Month of June is Gay Lesbian Pride Month in US
Second Sunday Father's Day in Belgium
Third Sunday Father's Day in US, UK, Mexico, the Netherlands, Ireland and Canada.

Julius Caesar. (He was actually born in June)

Begins on the same day as that of April in Common years and January in the leap years. No other months end as that of July in common years. In leap years July ends as tht of January.

Birth Stone - Ruby Flower - Water Lily.

July of Northern Hemisphere is equivalent to that of January in Southern Hemisphere and vice versa.

Tour-de-France - Cycle Race.

Cancer - Leo.

1--Canada Day, Independence day of Somalia,
3--Independence Day of Belarus,
4-- Independence Day of USA,
5-- Independence Day of Venezuela, Algeria,
6--Independence Day of Malawi,
9-- Independence Day of Argentina,
10--Independence Day of Bahamas
20--Independence Day of Columbia
21--Independence Day of Belgium
23--National Day of Egypt
26-- Independence Day of Maldives
28-- Independence Day of Peru
30-- Independence Day of Vanuatu.

Roman Emperor Augustus.

1. No other month begins on the same day as that of August in Common years.2. In leap year, February begins on the same day as that of August.3. Ends on the same day of November every year.4. It had only 29 days initially. Two days were added in 45 BC by Julius Caesar to make it 31 days.

Leo and Virgo

August in Southern Hemisphere is equal to February in Northern Hemisphere and vice versa.

Birth Stone - Peridot or Onyx Flower - Gladiolus or Poppy.

1--Swiss National Day
5--International Beer Day,
6--Hiroshima of Japan bombed during WWII
9--Nagasaki of Japan bombed during WWII;  Singapore separated from the federation of Malaysia and became Independent.
10--Independence Day of Ecuador
14--Independence Day of Pakistan;  World War I commenced (1914)
15--Independence Day of Korea;  Napoleon Bonaparte's Birth Day; Aurobindo Ghosh Birth Day; Mohan Bagan Foot Ball Club, Kolkatta - founded;  Independence Day of North and South Korea;  Sheikh Mujibur Rahman Assassinated;  Radio Jockeying started;  Independence Day of Bahrain;  Birth Day of Adnan Sami - singer;
17--Independence Day of Indonesia
25-Independence Day of Uruguay
31-Independence Day of Malaysia.
Vinayaka Chathurthi, Gokulashtami and Edinburgh Festival, UK are the festivals falling in the month of August.

Initially it was the seventh month in the calendar and accordingly it was named after the Latin word for Seven. However, the name remained as such even after the addition of January and February.

Begins on the same day as that of December every year. No month ends on the same day as that of September every year.

1.September in Northern Hemisphere is equivalent to that of March in the Southern Hemisphere and vice versa.2.Autumnal Equinox in Northern Hemisphere and Vernal Equinox in the Southern Hemisphere falls between September 21 to 24.

Birth Stone - Sapphire Flower - Aster, Morning Glory and Forget me Not.

1--Independence Day of Uzbekistan
2--WWII started in 1939 and ended in 1945
5--Dr. S.Radhakrishnan's Birth Day - Teachers Day
7--Independence Day of Brazil
11--Vivekananda's memorable speech at Chicago, USA in 1893;  Birth Day of Vinobha Bhave;  Death Day of Md.Ali Jinnah;  Gandhiji started peace movement (1906) against South African Govt.;  Terrorist attacks on World Trade Centre in 2001;
16--Independence Day of Mexico
18--Independence Day of Chile
19--Independence Day of St.Kitts & Nevis
21--International Peace Day.
End of September "Oktoberfest" starts in Germany.
First Sunday is "Father's Day" in Australia and New Zealand.

Before the addition of January and February, it was the eighth month and it was named with the Latin word for eight "Octo". However, the name has been retained as such even after the addition of two months.

October of Northern Hemisphere is equal to April of Southern Hemisphere and vice versa.

Libra and Scorpio

Birth Stone - Opal Flower - Calendula.

October of Northern Hemisphere is equal to April of Southern Hemisphere and vice versa.

In common years, October starts on the same day of January. No other month starts on the same day as that of October in leap years. October ends on the same day of the week as February every year and that of January in Common years only. In leap years, October starts on the same day of August of the previous year.

1--Independence Day of Cyprus, Nigeria and Turkmenistan. National Day of China
2--Gandhiji's Birth Day  "International Day of Non-violence";  Lal Bahadur Shastri's Birth Day;  K.Kamaraj's (Tamilnadu CM) death day; 
3--"Unity Day" in Germany
5--International World Teachers' Day
8--Independence Day of Croatia
10--National Day in Taiwan
12--National Day in Spain
16--World Food Day
24--United Nation's Day
26--National Day in Austria
27--Independence Day of St. Vincent and the Grenadines
29-- Republic Day of Turkey.
October Revolution of Russia 1917.Second Monday of October is "Columbus Day" in US Ramzan, Vijaya Dasami, Durga Pooja, Navarathri, Ayudha Pooja, Deepavali (sometimes in November) and Dessehra - all these festivals fall in October.

It was originally the 9th month of the calendar and thus named as per the Latin word for Nine. It remains unchanged even after the addition of January and February.

Starts on the same day as February in Common years and March every year. Ends on the same day of the week as August every year.

November of Southern Hemisphere is equal to May in Northern Hemisphere

Scorpio and Sagittarius.

Birth Stone -Topaz and Citrine Flower -Chrysanthemum.

2--All Souls Day
11--Independence Day of Poland
14--Nehruji's Birth Day - Children's Day.
18--Independence Day of Latvia
19--International Men's Day
20--Independence Day of Lebanon.
Fourth Thursday - Thanks Giving Day in USA & Puerto Rico
Deepavali,   Bakrid festivals fall on this month.

It was the tenth month earlier and accordingly, the latin word for ten is given as its name. It remained as such even after the addition of January and February.

Sagittarius and Capricorn.

1. Winter Solstice in Northern Hemisphere and Summer Solstice in Southern Hemisphere occur between 20 and 22nd December. 2. It has the shortest day light hours in Northern Hemisphere and the longest day light hours in the Southern Hemisphere

Birth Stone - Torquoise, Topaz, Lapis Lazuli, Zircon and Tanzanite.Flower - Holly.

1--World Aids Day, Union Day of Romania
2--National Day of United Arab Emirates
5--Santa Claus Day in the Netherlands
6--Independence Day of Finland
7--Pearl Harbour Day in USA
10--Human Rights Day;  Nobel Prizes are awarded on this date every year
12-Independence Day of Kenya
16--Victory Day of Bangladesh (1971)
23--Emperor's Day in Japan
25--Christmas, Isaac Newton's Birth Day
26--Boxing Day, Independence Day of Slovenia
31-New Year Eve;
"Hanukkah" a festival of lights for Jewish fall in this month.
Moharram, Karthigai Deepam are the other festivals to occur.
First Sunday - Fukuoka Marathon - Japan
Second Sunday - Honolulu Marathon in Hawai'i

Sun God.

1. An important day for Roman Catholic Christians who congregate in a Church and conduct prayers. The day is also called "Lord's Day".

Ravi Var - Hindi and North India;  Yaum al ahad -Arabic;  Robi Bar - Bengali;   Jamal - Bahai'i;  Gnyayiru - Tamil;  Shabbt - Judaism;  Sonntag -- German;  Dies Solis - Latin;  Domingo -- Spanish;  Aadhi Vaaram - Telugu.

Palm Sunday --Sunday before Easter Sunday.
Easter Sunday --The beginning of Lent.
Low Sunday --The first Sunday after Easter Sunday.
Passion Sunday-- Fifth Sunday of the Lent period.
Stirrup Sunday --The last Sunday before Advent.
Trinity Sunday --The first Sunday after Pentecost.
Gaudete Sunday --Third Sunday of Lent.
Good Shepherd Sunday--Fourth Sunday of the Easter.
Whit Sunday--Sunday of the feast of Whitsun or Pentecost in the Christian Liturgical Year, observed seven weeks after Easter.

Super Bowl Sunday: held on a Sunday either late January or early February. Known in American Professional foot ball - the day of the Championship game of the National Football League, and the festivities going along with it.

Bloody Sunday.

Bloody Sunday: A hard core Christian band from Virginia, US.
Sunday, Bloody Sunday: A film made in 1971.
Sunday, Bloody Sunday : A song by Irish band "U2" about the 1972 Northern Ireland incident - January 1972.
Black Sunday: A novel by Thomas Harris, made into a film by the same name in 1977.
Sunday: A computer virus detected in November 1989 belonging to the Jerusalem family of viruses.

An enquiry set up by Tony Blair in 1998 to investigate the 1972 incident in Ireland.

In the rhyme "Monday's child", Sunday is mentioned as "the child born on Sabbath Day is boney and blithe and good and gay".

Moon.

Somvar - in Hindi and North India;  Lunedi - Italian;  Shom Bar - Bengali and East India;  Lundi;French;  Lunes - Spanish: Luna- Latin; Thingal - Tamil and Malayalam Peer: Urdu;  Kamal - Bahai'i.

Clean Monday: Also called Pure Monday,;  Ash Monday;  Monday of Lent -is the first day of the Eastern Orthodox Christian Great Lent. Easter Monday: The day after Easter Sunday - Also called "Wet Monday";  Whit Monday: The day after the Pentecostal feast in Christianity.

Black Monday - this term is also applicable to other days too. It is more or less a general term.

A name given to a date assumed to be the most depressing day of the year.

First Monday of the year celebrated as such in Scotland, Northern England. Handsel refers to small tips and gifts.

The first Monday of January. Traditional start of the English agricultural year.

Miracle Monday - by Elliott S. Maggin - 1981- based on Superman.

"Monday's Child is fair of face".

Mars.

Mangalvar-Hindi/North India;  Martis Dies - Latin;  Mongol Bar -Bengali;  Mardi - French;  Sevvai -Tamil;  Martes - Spanish;  Chevva -Malayalam; Martedi - Italian; Mangal -Urdu;  Fidal (Grace)- Bahaai'i; Terca Fiera -Portuguese.

Shrove Tuesday: Also called "Mardi Gras" - the fat Tuesday - precedes the First day of Lent period in the western Christian Calendar.

29.10.1929 - When the stock market crash created a great economical depression in the USA

The day many American states hold their Presidential primary elections.

Second Tuesday of every month when Microsoft releases patches for their products.

Tuesday's child is full of grace.

In US home videos are released for sale or rental on Tuesdays only. All major video/audio releases are made only on Tuesdays in USA.

Mercury.

Budhwar -Hindi/North India;  Wednesdaeg - German;  Budhbar -Bengali/East India;  Dies Mercurii - Latin;  Budhan -Tamil/Malayalam;  Idal -- Bahai'i;  Yaum al Arbia'a--Arabic;  Chaar Shumba- Urdu.

Ash Wednesday - the first Wednesday in the period of Lent.

" Wednesday's Child is full of woe".

Jupiter

Guruvar - Hindi/North India;  Loris Dies - Latin;  Brihospati var- Bengali/East India;  Donner Stag - German;  Vyazhan - Tamil, Malayalam; Grovedi - Italian;  Junieraath - Urdu;  Jueves - Spain;  Istijlal - Bahai'i; Jendi - French.

Maundy Thursday: Thursday before Easter - the day on which the "Last Supper" took place. Ascension Thursday: 40 days after Easter, when Christ ascended into heaven.

All general elections are held on Thursdays. Local elections are held on the first Thursday of May.

Fourth Thursday in November.

24.10.1929 - On this day, a Thursday, New York Stock Exchange stock markets fell sharply.

" Thursday's Child has far to go".

Venus

Shukravar - Hindi/North India;  Dies Veneris - Latin;  Shukrobar - Bengali/East India;  Friestag - Germany;  Velli - Tamil/Malayalam;  Fredag - Swedish;  Vendredi - French;  Venerdi - Italian;  Ishtiqlal - Bahai'i;  Sexta Fiera - Portuguese.

Good Friday - Friday before easter - it commemorates the crucification of Jesus.

Islam - Day of worship for Muslims, and therefore the day is declared as a holiday in most Islamic countries.

Friday, falling on 13th of any month.

Man Friday: A devoted, efficient and trustworthy male assistant or employee. Woman Friday: A resourceful female assistant.

Also called "Dress Down Friday" or "Aloha Friday" - a relaxation of the Formal dress code employed by some corporations for that one day of the week.

"Friday's Child is loving and giving".

Saturn.

Sanivar - Hindi/North India;  Samstag - German; Shonibar - Bengali/East India;  Lordag - Swedish;  Haftha - Urdu; Sabato - Italian;  Sani - Tamil/Malayalam;  Samedi - French;  Sabado - Spanish/Portuguese; Jalal - Bahai'i;  Yaum al sabt - Arabic

Elections are held only on this day in both countries.

Holy Saturday - Comes before Easter Sunday.

"Saturday Child works hard for living".

Saturday Night Fever - 1977.