Years: 1228 1229 1230 – 1231 – 1232 1233 1234 Decades: 1200s 1210s 1220s – 1230s – 1240s 1250s 1260s Centuries: 12th century – 13th century – 14th century Events April 9—After a bizarre weather phenomena of yellowish clouds and dust chokes the air around Hangzhou, Song Dynasty, China, obscuring the sky and sun, a fire breaks out at night in the southeast of the city, which continues into the next day. Fighting the flames is difficult due to li… (More on 1231)