10 January

10 January (the Tenth of January, January 10th, &c.) is the tenth day of the year 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 10 January is followed by either 355 days or 356 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 11 January and the date that precedes it is 9 January.

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

Deaths

• James Tilly Matthews (1770-1815), exposer of the Air Loom gang
• Olive Whicher (1910-2006), Anthroposophist