Chronology

1050–1300Steady rise in population; period of milder climate
ca. 1100Merchant guilds become rich and powerful in many cities; artisans begin to found craft guilds
1100sHospitals and other homes for the sick begin appearing
1100–1300Height of construction of cathedrals in Europe
1160sSilver mines opened in Germany, allowing for more coinage
ca. 1200Founding of first universities
1215Fourth Lateran Council orders Jews and Muslims to wear distinctive clothing
1225–1274Life of Thomas Aquinas; Summa Theologica
1241Contract between Lübeck and Hamburg, first in the Hanseatic League
ca. 1300Bill of exchange becomes most common method of commercial payment in western Europe
1300sClocks in general use throughout Europe