1630s

The 1630s was a decade that began on 1 January 1630 and ended on 31 December 1639. It is distinct from the decade known as the 164th decade which began on January 1, 1631 and ended on December 31, 1640.

 Events and trends 
 Thirty Years' War goes on in Europe.
 September 8, 1636 – Thanks to a vote of the Great and General Court of the Massachusetts Bay Colony, Harvard College is the first college in the Americas.

 World leaders 
King Christian IV of Denmark and Norway (1588–1648).
King Charles I of England, Scotland and Ireland (1625–1649).
Hong Taiji, Emperor of the Qing.
King Louis XIII of France (1610–1643).
Cardinal Richelieu, chief minister of France (1624–1642).
Ferdinand II, Holy Roman Emperor (1620–1637).
Ferdinand III, Holy Roman Emperor (1637–1657).
Frederick Henry, Prince of Orange, Stadtholder of Holland, Zeeland, Utrecht, Overijssel and Gelderland (1625–1647).
Pope Urban VIII (1623–1644).
King Philip IV of Spain (1621–1665).
King Gustavus Adolphus of Sweden (1611–1632)
Queen Christina of Sweden (1632–1654).