January 7 » A peace treaty is signed between Peshwa Bajirao and Jai Singh II following Maratha victory in the Battle of Bhopal.
April 15 » Serse, an Italian opera by George Frideric Handel receives its premiere performance in London, England.
April 18 » Real Academia de la Historia ("Royal Academy of History") is founded in Madrid.
May 24 » John Wesley is converted, essentially launching the Methodist movement; the day is celebrated annually by Methodists as Aldersgate Day and a church service is generally held on the preceding Sunday.
July 15 » Baruch Laibov and Alexander Voznitzin are burned alive in St. Petersburg, Russia. Vonitzin had converted to Judaism with Laibov's help, with the consent of Empress Anna Ivanovna.
July 20 » Canadian explorer Pierre Gaultier de Varennes et de La Vérendrye reaches the western shore of Lake Michigan.
Day of marriage September 10, 1781
The temperature on September 10, 1781 was about 18.0 °C. Wind direction mainly north-northeast. Weather type: omtrent helder. Source: KNMI
February 18 » Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana).
March 1 » The Articles of Confederation goes into effect in the United States.
June 3 » Jack Jouett begins his midnight ride to warn Thomas Jefferson and the Virginia legislature of an impending raid by Banastre Tarleton.
August 5 » The Battle of Dogger Bank takes place.
September 4 » Los Angeles is founded as El Pueblo de Nuestra Señora La Reina de los Ángeles (The Village of Our Lady, the Queen of the Angels) by 44 Spanish settlers.
September 8 » American Revolutionary War: The Battle of Eutaw Springs in South Carolina, the war's last significant battle in the Southern theater, ends in a narrow British tactical victory.
Day of death September 28, 1784
The temperature on September 28, 1784 was about 14.0 °C. There was 88 mm of rainWind direction mainly west-northwest. Weather type: zeer betrokken. Source: KNMI
January 14 » American Revolutionary War: Ratification Day, United States - Congress ratifies the Treaty of Paris with Great Britain.
March 22 » The Emerald Buddha is moved with great ceremony to its current location in Wat Phra Kaew, Thailand.
April 9 » The Treaty of Paris, ratified by the United States Congress on January 14, 1784, is ratified by King George III of the Kingdom of Great Britain, ending the American Revolutionary War. Copies of the ratified documents are exchanged on May 12, 1784.
August 17 » Classical composer Luigi Boccherini receives a pay rise of 12000 reals from his employer, the Infante Luis, Count of Chinchón.
August 23 » Western North Carolina (now eastern Tennessee) declares itself an independent state under the name of Franklin; it is not accepted into the United States, and only lasts for four years.
October 22 » Russia founds a colony on Kodiak Island, Alaska.
When copying data from this family tree, please include a reference to the origin: G.J. Speckmann, "Family tree Speckmann", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-speckmann/I182.php : accessed January 8, 2026), "Johann Berend Vahlenkamp (1738-1784)".
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