Category:Organizations established in 1621 Society portalThis category is for organizations established in the year 1621.16141615161616191620162116221623162416251626 1570s1580s1590s1600s1610s1620s1630s1640s1650s1660s1670sSee also: Category:Organizations disestablished in 1621 Subcategories This category has the following 2 subcategories, out of 2 total. C Companies established in 1621 (1 P)M Military units and formations established in 1621 (1 P)