March 19 » Explorer Robert Cavelier de La Salle, searching for the mouth of the Mississippi River, is murdered by his own men.
July 5 » Isaac Newton publishes Philosophiæ Naturalis Principia Mathematica.
August 12 » Battle of Mohács: Charles of Lorraine defeats the Ottoman Empire.
September 26 » Morean War: The Parthenon in Athens, used as a gunpowder depot by the Ottoman garrison, is partially destroyed after being bombarded during the Siege of the Acropolis by Venetian forces.
December 31 » The first Huguenots set sail from France to the Cape of Good Hope.
Day of marriage December 26, 1725
The temperature on December 26, 1725 was about 6.0 °C. Source: KNMI
May 21 » The Order of St. Alexander Nevsky is instituted in Russia by Empress Catherine I. It would later be discontinued and then reinstated by the Soviet government in 1942 as the Order of Alexander Nevsky.
September 5 » Wedding of Louis XV and Maria Leszczyńska.
Day of death July 9, 1763
The temperature on July 9, 1763 was about 20.0 °C. Wind direction mainly south by east. Weather type: zeer betrokken. Special wheather fenomena: wat dauw. Source: KNMI
February 10 » French and Indian War: The Treaty of Paris ends the war and France cedes Quebec to Great Britain.
May 9 » The Siege of Fort Detroit begins during Pontiac's War against British forces.
July 31 » Odawa Chief Pontiac's forces defeat British troops at the Battle of Bloody Run during Pontiac's War.
September 1 » Catherine II of Russia endorses Ivan Betskoy's plans for a Foundling Home in Moscow.
September 14 » Seneca warriors defeat British forces at the Battle of Devil's Hole during Pontiac's War.
October 7 » King George III issues the Royal Proclamation of 1763, closing Indigenous lands in North America north and west of the Alleghenies to white settlements.
When copying data from this family tree, please include a reference to the origin: Ton Deunhouwer, "Family tree Dullemen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dullemen/I213957.php : accessed January 14, 2026), "Johan Willem Heldewier (1687-1763)".
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