13 February

13 February (the Thirteenth of February, February 13th, &c.) is the forty-fourth day of the year and the thirteenth day of the month of February under the Gregorian calendar, as first promulgated by Pope Gregory XIII, Bishop of Rome, in 1582 A.D., as well as the earlier Julian calendar, as first promulgated by Julius Caesar in 45 B.C. The date of 13 February is followed by either 321 days or 322 days during leap years, which are calculated differently in Gregorian and Julian calendars; in both calendars, regardless of its leap year status, the date that follows is 14 February and the date that precedes it is 12 February.

Note that for the purposes of the following indices, the Gregorian date trumps the Julian date, unless otherwise indicated.

Deaths

• Henry Holt (1840-1926), publisher
• Wesley H. Bateman (1937-2009), saucerian and contactee