Proleptic Gregorian calendar Proleptic Gregorian calendar The proleptic Gregorian calendar is produced by extending the Gregorian calendar backward to dates preceding its official introduction in 1582. In countries that adopted the Gregorian calendar later, dates occurring in the interim (between 1582 and the local adoption) are sometimes "Gregorianized" as well. For example, George Washington was born on February 11, 1731 (Old Style), as Great Britain and its possessions were using the Julian calendar with English years starting on March 25 until September 1752. After the switch, that day became February 22, 1732, which is the date commonly given as Washington's birthday. The proleptic
Chilla (month) Chilla (month) Chillā (Nepal Bhasa: चिल्ला) is the fifth month in the Nepal Era calendar, the national lunar calendar of Nepal. The month coincides with Phalguna (फागुन) in the Hindu lunar calendar and March in the Gregorian calendar. Chillā begins with the new moon and the full moon falls on the 15th of the lunar month. The month is divided into the bright and dark fortnights which are known as Chillā Thwa (चिल्ला थ्व) and Chillā Gā (चिल्ला गा) respectively. The major event that occurs during this month is Holi, the festival of colors, which begins on the 8th day