Umayyad Caliphate

Historical eventAugust 15718

Umayyad Caliphate

Forces of the Umayyad Caliphate abandoned a year-long siege of Constantinople, ending their goal of conquering the Byzantine Empire.

Everything on August 15Original source

In context

When
Monday, August 15 7181308 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
8th century · 710s
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 718.

What happened

Forces of the Umayyad Caliphate abandoned a year-long siege of Constantinople, ending their goal of conquering the Byzantine Empire.

August 15 through the years

Other entries on the same calendar day, in order.

  1. 718Umayyad Caliphate
  2. 1999Béni Ounif
  3. 2005Free Aceh Movement
  4. 2005Israeli disengagement from the Gaza Strip
  5. 20072007 Peru earthquake
  6. 2013August 2013 Beirut bombing
  7. 2013Smithsonian Institution
  8. 2015North Korea
  9. 2020Sputnik V COVID-19 vaccine
  10. 2021Kabul
  11. 2025Donald Trump

Sources

Cite this page

“Umayyad Caliphate”, What's On This Date, https://whatsonthisdate.com/app/event/umayyad-caliphate-718-august-15, 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 Umayyad Caliphate happen?

August 15 718 — 1308 years ago, on a Monday.

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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