Ngwagakete: Ngwagakete 2
Mengwagakgolo: Ngwagakgolo 16Ngwagakgolo 17Ngwagakgolo 18
Mengwagasome: 1600s  1610s  1620s  – 1630s –  1640s  1650s  1660s
Mengwaga: 1636 1637 163816391640 1641 1642

1639 (MDCXXXIX) ebile ngwaga wa go thoma ka Mokibelo, ngwaga wa bolesome ngwagengsome wa 1630s, ngwaga wa bomasometharo senyane ngwagengkgolo wa Ngwagakgolo 17, le ngwaga wa bomakgolo tshela masometharo senyane ngwagengkete wa Ngwagakete 2.