12th century

Centuries: 11th century - 12th century - 13th century

Decades: 1100s, 1110s, 1120s, 1130s, 1140s, 1150s, 1160s, 1170s, 1180s, 1190s

• First, Second, and Third Crusades of western European kingdoms against Islam
• Pope Adrian IV granted overlordship of Ireland to Henry II of England.
• [Song dynasty]? loses power over Northern China
• Suger? rebuilds the abbey church at [St Denis]? north of Paris, seen as first Gothic? building

Significant persons

• Peter Abelard
• Bernard of Clairvaux
• Saladin

Inventions, Discoveries, Introductions