July 14 » An expedition led by Gaspar de Portolá leaves its base in California and sets out to find the Port of Monterey (now Monterey, California).
July 16 » Father Junípero Serra founds California's first mission, Mission San Diego de Alcalá. Over the following decades, it evolves into the city of San Diego, California.
December 13 » Dartmouth College is founded by the Reverend Eleazar Wheelock, with a royal charter from King George III, on land donated by Royal governor John Wentworth.
December 22 » Sino-Burmese War: The war ends with an uneasy truce.
Day of marriage October 20, 1789
The temperature on October 20, 1789 was about 11.0 °C. Wind direction mainly south by east. Weather type: omtrent helder. Special wheather fenomena: noorderlicht. Source: KNMI
January 21 » The first American novel, The Power of Sympathy or the Triumph of Nature Founded in Truth by William Hill Brown, is printed in Boston.
January 23 » Georgetown College, the first Catholic university in the United States, is founded in Georgetown, Maryland (now a part of Washington, D.C.).
April 7 » Selim III became Sultan of the Ottoman Empire and Caliph of Islam.
July 14 » Alexander Mackenzie finally completes his journey to the mouth of the great river he hoped would take him to the Pacific, but which turns out to flow into the Arctic Ocean. Later named after him, the Mackenzie is the second-longest river system in North America.
September 26 » George Washington appoints Thomas Jefferson the first United States Secretary of State.
November 26 » A national Thanksgiving Day is observed in the United States as proclaimed by President George Washington at the request of Congress.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I16594.php : accessed October 16, 2026), "Maria Theresia de Wachter (1769-????)".
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