* 1620 – The Speedwell leaves Delfshaven to bring pilgrims to America by way of England.

* 1620 – István Gyöngyösi, Hungarian poet ( d. 1704 )

Alexander Anderson ( c. 1592, Aberdeen – c. 1620, Paris ) was a Scottish mathematician.

* 1582 – Taichang Emperor, of China ( d. 1620 )

* 1620 – Marguerite Bourgeoys, French founder of the Congregation of Notre Dame of Montreal ( d. 1700 )

* 1620 – The Mayflower departs from Southampton, England on its first attempt to reach North America.

* 1620 – John Graunt, English statistician and founder of the science of demography ( d. 1674 )

Aelbert Jacobsz Cuyp ( October 20, 1620 – November 15, 1691 ) was one of the leading Dutch landscape painters of the Dutch Golden Age in the 17th century.

* Laurent Bénard ( 1573 – 1620 )

* 1620 – Plymouth Colony: William Bradford and the Mayflower Pilgrims land on what is now known as Plymouth Rock in Plymouth, Massachusetts.

* 1620 – Roemer Visscher, Dutch writer ( b. 1547 )

* 1620 – François Charpentier, French archaeologist ( d. 1702 )

Fabritio Caroso da Sermoneta ( 1526 / 1535 – 1605 / 1620 ) was an Italian Renaissance dancing master and a composer or transcriber of dance music.

Over time it became clear these privileges would be open to abuse and when in 1620 the Huguenots proclaimed a constitution for the ' Republic of the Reformed Churches of France ', the Prime Minister Cardinal Richelieu ( 1585 – 1642 ) invoked the entire powers of the state.

John Alden ( 1599 – September 12, 1687 ) is said to be the first person from the Mayflower to set foot on Plymouth Rock in 1620.

* 1620 – Jean Picard, French astronomer ( d. 1682 )

* Lady Anne Hamilton ( 1592 – 1620 ), married Hugh Sempill, 5th Lord Sempill and had issue

( 2002 ) Politics, Society and Civil War in Warwickshire, 1620 – 1660.

* 1684 – Edme Mariotte, French physicist and priest ( b. 1620 )

* 1620 – St. John Sarkander, Moravian priest, died of injuries caused by torturing ( b. 1576 )

* 1620 – Pilgrims aboard the Mayflower sight land at Cape Cod, Massachusetts.

* 1620 – The Mayflower Compact is signed in what is now Provincetown Harbor near Cape Cod.

* 1620 – Peregrine White, first English child born in the Plymouth Colony ( d. 1704 )

* 1620 – Plymouth Colony settlers sign the Mayflower Compact ( November 11, O. S.

* Frederick William I, Elector of Brandenburg ( 1620 – 1688 ), Duke of Prussia

* Frederick V, Elector Palatine ( 1619 – 1620 ), Bohemian aristocrat

Elected in 1620, Coke sat for Liskeard in the 1621 Parliament, which was called by the King to raise revenues ; other topics of discussion included a proposed marriage between the Prince of Wales and Maria Anna of Spain, and possible military support for the King's son-in-law, Frederick V, Elector Palatine.

Ferdinand's forces routed Frederick at the Battle of White Mountain on 8 November 1620, and he was forced into exile along with this wife.

In March 1620, during a meeting of the Imperial party at Mulhouse, Frederick despatched a legal defense of his actions.

On 1 April 1620, the Imperial party issued an ultimatum calling on Frederick to leave Bohemia by 1 June.

To raise money for the Bohemian forces, Frederick used his private funds, pawned his jewels and, in May 1620, drove the Electoral Palatinate into insolvency when he decided to move two tons of gold to Bohemia.

Worst of all for Frederick, on 3 July 1620, the Protestant Union signed the Treaty of Ulm ( 1620 ), thereby withdrawing their support for Frederick and declaring neutrality in the conflict between Frederick and the Catholic League.

Frederick visited his army on 28 September 1620, but, lacking a military background, left the conduct of the war to his generals.

After a series of skirmishes, on 5 November 1620, Frederick drew his forces back towards Prague and Imperial troops followed them.

When, on 8 November 1620, Frederick wanted to ride back to the troops, he was met at the gate of Prague by fleeing soldiers of his army and his chancellor, Christian I, Prince of Anhalt-Bernburg, who informed him of the disaster: the Bohemian army had received a crushing defeat that morning in the Battle of White Mountain.

As a result of the Elector Palatine Frederick V's abortive claim to the Bohemian throne in 1619 – 1620, the Upper Palatinate, along with the rest of his lands, were declared forfeit to the Emperor and, along with the Electoral title, given to the Duke of Bavaria.

He adopted the military profession at an early age and in July 1620 volunteered to join Sir Horace Vere's expedition to aid Frederick V of Bohemia in the Electorate of the Palatinate and served in it until Bohemian defeat in 1623, participating in the two sieges of Frankenthal.

Frederick William, Elector of Brandenburg ( 1620 – 88 ).

During the Thirty Years ' War, George William was succeeded by Frederick William, born 1620, who became known as " The Great Elector " ( Der Große Kurfürst ).

James's policy was further jeopardised by the outbreak of the Thirty Years ' War, especially after his Protestant son-in-law, Frederick V, Elector Palatine, was ousted from Bohemia by the Catholic Emperor Ferdinand II in 1620, and Spanish troops simultaneously invaded Frederick's Rhineland home territory.

When Frederick V of the Palatinate ( successor to Frederick IV ) accepted the crown of Bohemia in 1619, the Protestant Union signed the Treaty of Ulm ( 1620 ) and refused to support him.

* Frederick William, Elector of Brandenburg, the " Great Elector " of Brandenburg-Prussia ( 1620 – 1688 )