Digwyddiadau a Gogwyddion
12g - 13g - 14g
1200au 1210au 1220au 1230au 1240au - 1250au - 1260au 1270au 1280au 1290au 1300au
1250 1251 1252 1253 1254 1255 1256 1257 1258 1259
Arweinwyr y Byd
- 1251-1259: Möngke Khan, Khan Mawr Ymerodraeth y Mongoliaid
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