1230s

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1200s 1210s 1220s – 1230s – 1240s 1250s 1260s
Years:	1230 1231 1232 1233 1234 1235 1236 1237 1238 1239
Categories:	Births – Deaths – Architecture Establishments – Disestablishments

The 1230s were a decade that lasted from January 1, 1230 to December 31, 1239. It is distinct from the decade known as the 124th decade which began on January 1, 1231. and ended on December 31, 1240.

Events

• The Liverpool Castle started in 1232.
• Ducal state Brunswick-Luneburg was formed in 1235.
• St. Mark Basilica of Heraklion, Venitian Crete built in 1239