April 8 » Shearith Israel, the first synagogue in New York City, is dedicated.
July 8 » An estimated magnitude 8.7 earthquake causes a tsunami that damages more than 1,000km (620mi) of Chile's coastline.
October 1 » Ahmed III is forced to abdicate as the Ottoman sultan.
October 22 » Construction of the Ladoga Canal is completed.
November 18 » The future Frederick II (known as Frederick the Great), King of Prussia, is granted a royal pardon and released from confinement.
Day of marriage April 9, 1775
The temperature on April 9, 1775 was about 8.0 °C. Wind direction mainly north. Weather type: geheel betrokken. Special wheather fenomena: wat dauw. Source: KNMI
February 9 » American Revolutionary War: The British Parliament declares Massachusetts in rebellion.
April 18 » American Revolution: The British advancement by sea begins; Paul Revere and other riders warn the countryside of the troop movements.
June 12 » American Revolution: British general Thomas Gage declares martial law in Massachusetts. The British offer a pardon to all colonists who lay down their arms. There would be only two exceptions to the amnesty: Samuel Adams and John Hancock, if captured, were to be hanged.
September 8 » The unsuccessful Rising of the Priests in Malta.
November 7 » John Murray, the Royal Governor of the Colony of Virginia, starts the first mass emancipation of slaves in North America by issuing Lord Dunmore's Offer of Emancipation, which offers freedom to slaves who abandoned their colonial masters to fight with Murray and the British.
December 3 » USSAlfred becomes the first vessel to fly the Grand Union Flag (the precursor to the Stars and Stripes); the flag is hoisted by John Paul Jones.
When copying data from this family tree, please include a reference to the origin: W.J. Oving, "Family tree Oving", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oving/I11368.php : accessed February 10, 2026), "Dersken ROSEGAAR (1730-< 1808)".
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