20 Jumādā al-Ūlā 15 AH

٢٠ جمادى الأولى ١٥

20 Jumādā al-Ūlā 15 AH · ≈ Sunday 30 June 636

Mehmed II takes the city after 53 days of siege; eleven centuries of Byzantium end and Istanbul begins.

20 Jumādā al-Ūlā 857 AH29 May 1453DayAttestedOttoman · Anatolia · Conquest

Month-precise — Spanning this month:

Three thousand meet the Byzantine frontier army east of the Jordan; the three appointed commanders fall one after another.

Jumādā al-Ūlā 8 AH≈ Sep 629MonthAttestedProphetic era · Levant · Battle

YEAR-PRECISE — THIS YEAR IN 15 AH

Four days on the desert’s edge break Sasanian field power; Ctesiphon and Iraq follow.

15 AH≈ 636 CEYearDisputedRashidun · Iraq · Battle

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24Foundation of al-Azhar359 AH · ≈ 4 Apr 970