Year 1230 ( MCCXXX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar . March 9 – Battle of Klokotnitsa: Byzantine forces under Theodore Komnenos ( Doukas) invade Bulgaria, breaking the peace treaty with Tsar Ivan Asen II.

World History 1200-1300 AD. Egypt controlled Jerusalem until 1517, and it remained in Muslim hands until 1918. 1250 AD Seventh Crusade Ended First Mameluke Dynasty Founded - The Seventh Crusade met defeat at the hands of Egyptian forces led by the new Caliph, Turanshah, at the Battle of Fairskur on April 6th 1250.

1270 AD Louis IX Dies - Louis IX died in 1270 while on the Eighth Crusade. His reign was marked by a huge expansion of royal power. The King's power increased at the expense of both the Church as well as local communal movements. The royal justice system was also greatly expanded.

1215 AD Magna Carta - In 1215, a group of determined barons forced King John of England to sign the Magna Carta. Under the terms of Magna Carta, the British aristocracy was granted the rights of trial by jury and protection from arbitrary acts by the King. 1217 AD French English Battles - With the death of King John, civil war soon divided England.