1143

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

Decades: 1090s 1100s 1110s 1120s 1130s - 1140s - 1150s 1160s 1170s 1180s 1190s

Years: 1138 1139 1140 1141 1142 - 1143 - 1144 1145 1146 1147 1148

• Celestine II is elected pope.
• Portugal is recognized by the Kingdom of Leon as an independent kingdom.

• Emperor Nijo of Japan
• William the Lion of Scotland

• April 8 - John II Comnenus, Byzantine emperor
• Pope Innocent II