Events on September 20

Date	Type	Event
20 September 1187	Battles & Sieges	(20 September) Salah al-Din began the siege of Jerusalem. After a 2-week-long siege, the city of Jerusalem would be conquered by Salah al-Din.
20 September 1857	Battles & Sieges	(20 September) The British EIC forces captured the city of Delhi. With the fall of Delhi, the Mughal Empire also came to an end.