On This Day

Roman General Diocletian is proclaimed emperor by the armies of the East and West after the death of Carinus at the Batt

Roman General Diocletian is proclaimed emperor by the armies of the East and West after the death of Carinus at the Battle of the Margus

Roman General Diocletian is proclaimed emperor by the armies of the East and West after the death of Carinus at the Battle of the Margus

Key People

Diocletian

Roman emperor from 284 to 305

Roman emperor from 284 to 305

Events Before

  1. St. Eutychian begins his reign as pope of the Catholic Church

    St. Eutychian begins his reign as pope of the Catholic Church

  2. St. Caius begins his reign as Catholic Pope

    St. Caius begins his reign as Catholic Pope

Events After

  1. Earliest known date on a Maya inscription, possibly depicting the enthronement of King Siyaj Chan K'awiil I of Tikal (St

    Earliest known date on a Maya inscription, possibly depicting the enthronement of King Siyaj Chan K'awiil I of Tikal (Stela 29 Tikal) [1]

  2. Roman emperor Maximianus introduces tetrarchy (rule of four people) elevating Galerius and Constantius Chlorus to Caesar

    Roman emperor Maximianus introduces tetrarchy (rule of four people) elevating Galerius and Constantius Chlorus to Caesar

  3. BC The oldest known Roman temple to Venus is founded, initiating the institution of Vinalia Rustica (grape harvest festi

    BC The oldest known Roman temple to Venus is founded, initiating the institution of Vinalia Rustica (grape harvest festival)

More from the 280s

Frequently Asked Questions

What happened on November 20, 284?
Roman General Diocletian is proclaimed emperor by the armies of the East and West after the death of Carinus at the Battle of the Margus
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Key figures include Diocletian (Roman emperor from 284 to 305).

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