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
Jyeshtha (month) begins with the Sun's entry into Taurus, and is the second month of the year. In the Vaishnava calendar. Jyeshtha (month) Jyeshtha or Jyēṣṭha (; "jēṭ"; "zeth") is a month of the Hindu calendar. In India's national civil calendar, Jyestha is the third month of the year. Known as "Joishtho" ( "Jyôishţhô") in Bengali, it is the second month of the Bengali calendar. In lunar religious calendars, Jyēṣṭha begins on the new moon and is the third month of the year. Traditionally, Jyēṣṭha is associated with high summer, and corresponds to May–June in the Gregorian calendar. In Tamil, the month