Decades: 1200s 1210s 1220s 1230s 1240s - 1250s - 1260s 1270s 1280s 1290s 1300s
Years: 1250 1251 1252 1253 1254 - 1255 - 1256 1257 1258 1259 1260
Births
Deaths
... for sperm. The external urethral sphincter is the skeletal muscle that allows voluntary control over urination. In the human female, the urethra is about 1-1.5 ...