1248

Year 1248 (MCCXLVIII) was a leap year starting on Wednesday of the Julian calendar.

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1210s  1220s  1230s  – 1240s –  1250s  1260s  1270s
Years:	1245 1246 1247 – 1248 – 1249 1250 1251

Events

• Cologne Cathedral built.
• King Louis IX of France starts the Seventh Crusade. He leaves with an army of 20,000 toward Egypt.
• Roger Bacon publishes the formula for black powder in Europe.

Births

for more information, see Category:1248 births.