Civil wars of the Tetrarchy

Historical eventOctober 28312

Civil wars of the Tetrarchy

Civil wars of the Tetrarchy: Constantine the Great defeated Maxentius at the Battle of the Milvian Bridge in Rome.

Everything on October 28Original source

In context

When
Tuesday, October 28 3121714 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 312.

What happened

The civil wars of the Tetrarchy were a series of conflicts between the co-emperors of the Roman Empire, starting from 306 AD with the usurpation of Maxentius and the defeat of Severus, and ending with the defeat of Licinius at the hands of Constantine I in 324 AD.

October 28 through the years

Other entries on the same calendar day, in order.

  1. 312Civil wars of the Tetrarchy
  2. 20072007 Argentine general election
  3. 200928 October 2009 Peshawar bombing
  4. 2009Barack Obama
  5. 2009NASA
  6. 2013Turkistan Islamic Party
  7. 20132013 Tiananmen Square attack
  8. 2014Cygnus Orb-3
  9. 2018Jair Bolsonaro
  10. 20232023 Rugby World Cup final
  11. 2025Hurricane Melissa

Sources

Cite this page

“Civil wars of the Tetrarchy”, What's On This Date, https://whatsonthisdate.com/app/event/civil-wars-of-the-tetrarchy-312-october-28, 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?

October 28 312 — 1714 years ago, on a Tuesday.

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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