< CCCXI = 311 >
Events in 311
|22 March:|| ||Jews celebrate Pesach for the next seven or eight days.|
|13 May:|| ||Roman emperor Galerius issues the Edict of Toleration in Nicomedia, ending the the persecution of Christianity and paving the way for its legalization two years later in the Edict of Milan by his successor Constantine.|
|11 September:|| ||Jews celebrate Yom Kippur since sunset last night.|
|3 December:|| ||Diocletian, Roman emperor from 284 to 305 and the first to voluntarily abdicate, dies in Aspalathos, modern day Split in Croatia, at age 80.|
People in 311
Constantine the Great celebrated their birthday this year.
The year 311 was a common year starting on a Monday, just like 221, 227, 238, 249, 255, 266, 277, 283, 294, 300 and 305 in the century before it and 322, 333, 339, 350, 361, 367, 378, 389, 395 and 406 in the next.
The coloured days highlight
other historical milestones, and recurring events such as anniversaries and
icons indicate the phases of the moon and appear only for dates in the Gregorian calendar, i.e. after 14 October 1582. The Chinese calendar is available only from 1645 to 2644, the first millenium since the last reform. The coloured columns mark the Sundays, the last day of the week per standard ISO-8601.
The normal calendar page for the current /year?2018 contains an introduction to the intriguing history of the year as we know it. The Calendar Converter has more detail. The so called Perpetual Calendar uses a trick from before the age of computers to find the weekday for any Gregorian date. Also see an overview of all historical events in the last six thousand years.
URL: < http://4umi.com/year?311 >, created 23 January 2011, changed 13 September 2012, served 22 June 2018.