major earthquake strikes Van in Ottoman Armenia. April–June April 19 – First Battle of Guararapes: The Portuguese army defeats the Dutch army, in the north of Brazil. May 12 – Construction of the Kaunghmudaw Pagoda is completed in the Kingdom of Burma on the 6th waning of Kason, 1010, near the end of the reign of King Thalun. Hmannan Yazawin May 15 – The Peace of Münster is ratified by both the United Netherlands and the Spanish Empire. May 16 – England's Commonwealth Army massacres 70 Cornish royalists at Penzance, leading to a rebellion against England's Parliamentarians. May 20 – Wladyslaw IV Vasa, King of Poland and Grand Duke of Lithuania, dies after a reign of 15 years. The throne remains vacant for six months until Wladyslaw's younger half-brother, John II Casimir Vasa, is elected by Poland's Parliament. June 1 – The Roundheads defeat the Cavaliers at the Battle of Maidstone in the Second English Civil War. June 20– Russian explorer Semyon Dezhnyov departs from Srednekolymsk to begins the first recorded voyage through the Bering Strait, between Asia and North America, and arrives in September. July–September July 19–19 – The last major battle of the Thirty Years' War, the Battle of Prague ends in a Swedish victory after three days of fighting over the army of Bohemia. The troops loot the Prague Castle and steal many of Bohemia's most valuable artifacts. August 8 – Mehmed IV (1648–1687) succeeds Ibrahim I (1640–1648), as Ottoman Emperor. August 16 – The Imam of Oman, Nasir bin Murshid, dispatches an army to recapture Muscat from Portuguese occupiers, who eventually surrender the town on January 23, 1650. August 20 – The French Army, under the command of the Prince of Condé, defeats the Spaniards at the Battle of Lens. Upon learning of the victory, Cardinal Mazarin orders the arrest of the members of the Fronde Parlementaire, leading to an insurrection in Paris. August – The Cambridge Platform, a new, localized system of Christian church governance, is agreed upon and written down in New England. September 12 – At the Battle of Stirling in Scotland, the "Engagers" achieve victory over the Kirk Party. October–December October 24 – Signing of the Treaties of Münster and Osnabrück concludes the Peace of Westphalia, ending the Thirty Years' War. Rulers of the Imperial States can personally convert to Protestant, Catholic or Calvinist. Ecclesiastical property is restored to the status of