1529 may refer to:
Aloysius Lilius, also variously referred to as Luigi Lilio or Luigi Giglio, was an Italian doctor, astronomer, philosopher and chronologist, and also the "primary author" who provided the proposal that became the basis of the Gregorian Calendar reform of 1582.
New Year's is a colloquial term with unclear definition and may refer to:
The Discordian or Erisian calendar is an alternative calendar used by some adherents of Discordianism. It is specified on page 00034 of the Principia Discordia.
Old Style (O.S.) and New Style (N.S.) indicate dating systems before and after a calendar change, respectively. Usually, this is the change from the Julian calendar to the Gregorian calendar as enacted in various European countries between 1582 and 1923.
3010 may refer to:
442 may refer to:
2170 may refer to:
311 may refer to:
355 AD/CE (CCCLV) is a year in the Gregorian calendar.
New Year is the time when a culture celebrates the end of one calendar year and the beginning of the next.
1985 was a common year starting on Tuesday of the Gregorian calendar. 1985 may also refer to:
2001 was a common year starting on Monday of the Gregorian calendar.
520 may refer to:
New Year's Day is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.
The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun.
86 may refer to:
1952 is a year in the Gregorian calendar.
147 may refer to:
1917 is a year in the Gregorian calendar.
468 AD/CE is a year of the Julian calendar.