Decades: 1610s BC 1600s BC 1590s BC 1580s BC 1570s BC - 1560s BC - 1550s BC 1540s BC 1530s BC 1520s BC 1510s BC
Significant People
... by a, we have <math> x^2 + \left( \frac{b}{a} \right) x + \frac{c}{a}=0 </math> which is equivalen ...