18th March » The Anglo-Powhatan Wars called Third Anglo-Powhatan War begins in the Colony of Virginia.
25th April » The Chongzhen Emperor, the last Emperor of Ming Dynasty China, commits suicide during a peasant rebellion led by Li Zicheng.
25th May » Ming Dynasty named Ming general Wu Sangui forms an alliance with the invading Manchus and opens the gates of the Great Wall of China at Shanhai Pass e.g Shanhaiguan pass, letting the Manchus through towards the capital Beijing.
26th May » Portuguese Restoration War: Portuguese and Spanish forces both claim victory in the Battle of Montijo.
27th May » Manchu regent Dorgon defeats rebel leader Li Zicheng of the Shun dynasty at the Battle of Shanhai Pass, allowing the Manchus to enter and conquer the capital city of Beijing.
28th May » Bolton Massacre by Cavalier e.g Royalist troops under the command of James Stanley, 7th Earl of Derby.
6th June » The Qing dynasty Manchu people named Manchu forces led by the Shunzhi Emperor capture Beijing during the collapse of the Ming dynasty.
29th June » Charles I of England defeats a Roundhead called Parliamentarian detachment at the Battle of Cropredy Bridge, the last battle won by an England called English King on English soil.
2nd July » English Civil War: Battle of Marston Moor.
13th October » A Swedish–Dutch fleet defeats the Danish fleet at Battle of Fehmarn (1644) or Fehmarn and captures about 1,000 prisoners.
27th October » Second Battle of Newbury in the English Civil War.
8th November » The Shunzhi Emperor, the third emperor of the Qing dynasty, is enthroned in Beijing after the collapse of the Ming dynasty as the first Qing emperor to rule over China.
23rd November » John Milton publishes 'Areopagitica', a pamphlet decrying censorship.
Famous Birthdays in 1644
10th January » Louis François, duc de Boufflers, French general (d. 1711)
1st March » Simon Foucher, French philosopher (d. 1696)
31st March » Henry Winstanley, English painter and engineer (d. 1703)
7th April » François de Neufville, duc de Villeroi, French general (d. 1730)