Historical eventApril 30313

Civil wars of the Tetrarchy

Civil wars of the Tetrarchy: An outnumbered army led by Roman emperor Licinius defeated his rival Maximinus II's forces at the Battle of Tzirallum.

Everything on April 30Original source

In context

When
Thursday, April 30 3131713 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
4th century · 310s
Calendar
Julian — as recorded at the time
Recorded from
Wikipedia “On this day” feed

Dates before 15 October 1582 are in the Julian calendar, so the weekday shown follows the Julian reckoning of the time.

At a glance

Dates: From 313.

What happened

Civil wars of the Tetrarchy: An outnumbered army led by Roman emperor Licinius defeated his rival Maximinus II's forces at the Battle of Tzirallum.

April 30 through the years

Other entries on the same calendar day, in order.

  1. 313Civil wars of the Tetrarchy
  2. 2000Canonization
  3. 2004The New Yorker
  4. 2004Abu Ghraib torture and prisoner abuse
  5. 2008Yekaterinburg
  6. 20092009 attack on the Dutch royal family
  7. 2009Chrysler
  8. 2012Assam ferry sinking
  9. 2013Willem-Alexander of the Netherlands
  10. 2014April 2014 Ürümqi attack
  11. 20212021 Meron crowd crush

Sources

Cite this page

“Civil wars of the Tetrarchy”, What's On This Date, https://whatsonthisdate.com/app/event/civil-wars-of-the-tetrarchy-313-april-30, accessed October 29, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did Civil wars of the Tetrarchy happen?

April 30 313 — 1713 years ago, on a Thursday.

Is this a Julian or a Gregorian date?

It is the date as recorded at the time, on the Julian calendar. The Gregorian equivalent falls about ten days later; sources from different countries may give either.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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