Centuries: 6th century - 7th century - 8th century
Decades: 570s 580s 590s 600s 610s - 620s - 630s 640s 650s 660s 670s
Years: 615 616 617 618 619 - 620 - 621 622 623 624 625
Births
Deaths
... the upper rim of the groove, while the other end of the axis pushes against the lower rim of the groove. While the axis is slipping around inside the groove, the ...