Decades: 1430s BC 1420s BC 1410s BC 1400s BC 1390s BC - 1380s BC - 1370s BC 1360s BC 1350s BC 1340s BC 1330s BC
Significant People
... and it is impossible to divide by it.) The symbol <math>\pm \sqrt {b^2-4ac}</math> in the formula should be understood as "either of those element(s) of ...