Decades: 1200s 1210s 1220s 1230s 1240s - 1250s - 1260s 1270s 1280s 1290s 1300s
Years: 1246 1247 1248 1249 1250 - 1251 - 1252 1253 1254 1255 1256
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 ...