February 17 » Sixteen men of Pascual de Iriate's expedition are lost at Evangelistas Islets at the western end of the Strait of Magellan.
June 1 » Battle of Öland: allied Danish-Dutch forces defeat the Swedish navy in the Baltic Sea, during the Scanian War (1675–79).
June 2 » Franco-Dutch War: France ensured the supremacy of its naval fleet for the remainder of the war with its victory in the Battle of Palermo.
September 19 » Jamestown is burned to the ground by the forces of Nathaniel Bacon during Bacon's Rebellion.
November 21 » The Danish astronomer Ole Rømer presents the first quantitative measurements of the speed of light.
December 4 » The Danish army under the command of King Christian V engages the Swedish army commanded by the Swedish king Charles XI at the Battle of Lund, to this day it is counted as the bloodiest battle in Scandinavian history and a turning point in the Scanian War.
January 26 » For the first time, the Ottoman Empire permanently cedes territory to the Christian powers.
February 16 » First Leopoldine Diploma is issued by the Holy Roman Emperor, recognizing the Greek Catholic clergy enjoyed the same privileges as Roman Catholic priests in the Principality of Transylvania.
March 30 » Guru Gobind Singh establishes the Khalsa in Anandpur Sahib, Punjab.
April 14 » Khalsa: The Sikh religion was formalised as the Khalsa - the brotherhood of Warrior-Saints - by Guru Gobind Singh in northern India, in accordance with the Nanakshahi calendar.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I410818.php : accessed January 23, 2026), "Petronella Gerardus "Petronella" Martens (1676-> 1760)".
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