Decades: 1340s 1350s 1360s 1370s 1380s - 1390s - 1400s 1410s 1420s 1430s 1440s
Years: 1394 1395 1396 1397 1398 - 1399 - 1400 1401 1402 1403 1404
Births
Deaths
... angles. From this definition, it follows that a rectangle has two pairs of opposite sides of equal length; that is, a rectangle is a parallelogram. A square is a special ...