Historical
1620-1621: Poland, Turkey - Polish-Ottoman War over Moldavia
1620: Poland - Battle of White Mountain, Emperor Ferdinand II, Holy Roman Emperor, defeats the Bohemian rebels
1620: Romania, Turkey - Bethlen Gabor allies with the Ottomans and an Invasion of Moldavia takes place, the Polish suffer a disaster at Cecora on the River Prut
1620: United States - The Puritan Pilgrims arrive in the Mayflower at Cape Cod
1621: Poland, Turkey - The Battle of Chocim Poles and Cossacks under Jan Karol Chodkiewicz defeat the Ottomans
1621: United States - The Pilgrims celebrate the first Thanksgiving with their Indian neighbors
1622: United States - Jamestown massacre Algonquian natives kill 347 English settlers outside Jamestown, Virginia (a third of the population of the colony) and burn the Henricus settlement
1623: Italy - Maffeo Barberini is elected Pope Urban VIII at the Papal conclave of 1623
1624-1642: France - As chief minister, Cardinal Richelieu centralises power in France
1625: United States - New Amsterdam founded by the Dutch West India Company in North America
1626: Italy - St. Peters Basilica in the Vatican completed
1626: United States - The Dutch buy Manhattan Island for $24, a presence is established but no large settlements made
1627: France - Cardinal Richelieu lays siege to Protestant La Rochelle which eventually capitulates
1629: France - Cardinal Richelieu allies with Swedish Protestant forces in the Thirty Years War to counter expansion by Ferdinand II
1631: Italy - Mount Vesuvius erupts near Naples
1632: germany - Battle of Lutzen (first of two), death of king of Sweden Gustav II Adolf
1633: Italy - Galileo Galilei arrives in Rome for his trial before the Inquisition
1633: United States - The city of Baltimore is settled
1634: Ethiopia - Emperor Fasilides expels the Catholic Patriarch Afonso Mendes and several Jesuit missionaries from Ethiopia
1634: Germany - Battle of Nordlingen (first of two), in Bavaria, results in Catholic victory
1636: Ethiopia - Emperor Fasilides founds the city of Gondar, which becomes the capital of Ethiopia for the next two centuries
1636: United States - Harvard University is founded in Cambridge, Massachusetts
1636: United States - Roger Williams is driven from Puritan Massachusetts and settles Rhode Island, a haven for religious freedom
1638: United States - Delaware is settled by Peter Minuet
1639-1651: England, Ireland, Scotland - Wars of the Three Kingdoms, civil wars throughout Scotland, Ireland, and England
1639: Italy - Disagreements between the Farnese and Barberini Pope Urban VIII escalate into the Wars of Castro and last until 1649
1639: Spain, England - Naval Battle of the Downs, Republic of the United Provinces fleet decisively defeats a Spanish fleet in English waters
1639: United States - John Wheelwright is banished from Boston and founds a colony in New Hampshire
1640-1668: Portugal - The Portuguese Restoration War led to the end of the Iberian Union
1640: England - Torture is outlawed in England
1640: Scotland - King Charles was compelled to summon Parliament due to the revolt of the Scots
1640: United States - The population of the American Colonies is estimated at 5,700. Starting in the 1990's, Charles Anderson of the New England Historic Genealogical Society begins books that provides information about all persons in New England by 1640.