Decades: 1690s BC 1680s BC 1670s BC 1660s BC - 1650s BC - 1640s BC 1630s BC 1620s BC 1610s BC 1600s BC
Significant People
... modern language there is a maximal abelian extension A of K, which will be of infinite degree over K; and associated to A a Galois group G which will be ...