Historical eventSeptember 181048

Byzantine–Seljuk wars

Byzantine–Seljuk wars: Byzantine forces defeated their Seljuk opponents in the flanks of the nocturnal Battle of Kapetron, but learned of their Georgian allies' defeat in the centre the next morning.

Everything on September 18Original source

In context

When
Sunday, September 18 1048978 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
11th century · 1040s
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 1048.

What came beforeAI-assisted

The Seljuk Turks had begun migrating into Anatolia in the 1040s, gradually encroaching on Byzantine-controlled territory. By 1048, the Byzantine Empire faced increasing pressure from Seljuk raids and territorial expansion in eastern Anatolia.

Catalyst / how it startedAI-assisted

Byzantine Emperor Constantine IX Monomachos organized a military campaign to counter Seljuk advances and protect Byzantine interests in the region. The campaign brought together Byzantine forces and their Georgian allies to confront the Seljuk threat directly.

Who was involvedAI-assisted

The Byzantine Empire under Constantine IX Monomachos commanded the campaign, with significant participation from Georgian allied forces. The Seljuk forces, led by their commanders in Anatolia, opposed the Byzantine-Georgian coalition.

TimelineAI-assisted

September 18, 1048: The Battle of Kapetron occurred as a nocturnal engagement, with Byzantine flanks achieving tactical success. The following morning, the Byzantines discovered their Georgian center had been defeated, resulting in an overall strategic loss despite local victories.

What happened

Byzantine–Seljuk wars: Byzantine forces defeated their Seljuk opponents in the flanks of the nocturnal Battle of Kapetron, but learned of their Georgian allies' defeat in the centre the next morning.

September 18 through the years

Other entries on the same calendar day, in order.

  1. 1048Byzantine–Seljuk wars
  2. 2007Saffron Revolution
  3. 2009CBS Studios
  4. 2010Philippe Croizon
  5. 20112011 Sikkim earthquake
  6. 2013Via Rail
  7. 20142014 Scottish independence referendum
  8. 20152015 Camp Badaber attack
  9. 20162016 Uri attack
  10. 2017Toys "R" Us
  11. 2018Cannabis

Sources

Cite this page

“Byzantine–Seljuk wars”, What's On This Date, https://whatsonthisdate.com/app/event/byzantine-seljuk-wars-1048-september-18, 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 Byzantine–Seljuk wars happen?

September 18 1048 — 978 years ago, on a Sunday.

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. Panels marked AI-assisted were filled where the sources left a heading empty.

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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