Decades: 1170s 1180s 1190s 1200s 1210s - 1220s - 1230s 1240s 1250s 1260s 1270s
Years: 1223 1224 1225 1226 1227 - 1228 - 1229 1230 1231 1232 1233
Births
Deaths
... of water, at a temperature of 62°F, which, by calculation, is equivalent to 277.42 cubic inches. At the same time, they redefined the bushel as 8 gallons. In ...