On 12 December 1191 Saladin disbanded the greater part of his army. Learning this, Richard pushed his army forward, to within 12 miles from Jerusalem before retreating back to the coast. The Crusaders made another advance on Jerusalem, coming within sight of the city in June before being forced to retreat again. Hugh III of Burgundy, leader of the Franks, was adamant that a direct attack on Jerusalem should be made. This split the Crusader army into two factions, and neither was strong enough to achieve its objective. Without a united command the army had little choice but to retreat back to the coast.

The efforts of Andronikos II (1282 – 1328) and later his grandson Andronikos III (1328 – 1341) marked Byzantium's last genuine attempts in restoring the glory of the Empire. However, the use of mercenaries by Andronikos II often backfired, with the Catalan Company ravaging the countryside and increasing resentment towards Constantinople.

On Thursday, December 12, 1799, Washington inspected his farms on horseback in snow and sleet. He returned home late for dinner but refused to change out of his wet clothes, not wanting to keep his guests waiting. He had a sore throat the following day but again went out in freezing, snowy weather to mark trees for cutting. That evening, he complained of chest congestion, but was still cheerful.

Francis Albert Sinatra was born on December 12, 1915, in an upstairs tenement at 415 Monroe Street in Hoboken, New Jersey, the only child of Italian immigrants Natalina "Dolly" Garaventa and Antonino Martino "Marty" Sinatra.

On 12 December 1916, after ten brutal months of the Battle of Verdun and a successful offensive against Romania, Germany attempted to negotiate a peace with the Allies. However, this attempt was rejected out of hand as a "duplicitous war ruse".