Historical eventSeptember 3863

Arab–Byzantine wars

Arab–Byzantine wars: The Byzantine Empire decisively defeated the Emirate of Melitene at the Battle of Lalakaon, beginning the era of Byzantine ascendancy.

Everything on September 3Original source

In context

When
Friday, September 3 8631163 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
9th century · 860s
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 863.

What happened

The Arab–Byzantine wars or Muslim–Byzantine wars were a series of wars from the 7th to 11th centuries between successive Muslim states and the Byzantine Empire. Following the Byzantine defeat at the Battle of the Yarmuk, Muslim armies conquered most Byzantine territory in the Levant, Egypt and North Africa within decades. Arab expansion subsequently slowed to a more gradual rate, following two failed sieges of the Byzantine capital of Constantinople in the late 7th and early 8th centuries. By the mid-9th century,

September 3 through the years

Other entries on the same calendar day, in order.

  1. 863Arab–Byzantine wars
  2. 1989Varig Flight 254
  3. 1991Hamlet chicken processing plant fire
  4. 1997Vietnam Airlines
  5. 2001The Troubles
  6. 2001Belfast
  7. 2004Beslan school siege
  8. 2010Dubai International Airport
  9. 2016China
  10. 20172017 North Korean nuclear test
  11. 2017North Korea

Sources

Cite this page

“Arab–Byzantine wars”, What's On This Date, https://whatsonthisdate.com/app/event/arab-byzantine-wars-863-september-3, accessed October 28, 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 Arab–Byzantine wars happen?

September 3 863 — 1163 years ago, on a Friday.

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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