March 10 » French Huguenot Jean Calas, who had been wrongly convicted of killing his son, dies after being tortured by authorities; the event inspired Voltaire to begin a campaign for religious tolerance and legal reform.
May 5 » Russia and Prussia sign the Treaty of St. Petersburg.
May 22 » Sweden and Prussia sign the Treaty of Hamburg.
May 22 » Trevi Fountain is officially completed and inaugurated in Rome.
June 24 » Battle of Wilhelmsthal: The British-Hanoverian army of Ferdinand of Brunswick defeats French forces in Westphalia.
July 17 » Former emperor Peter III of Russia is murdered.
Day of death October 9, 1788
The temperature on October 9, 1788 was about 8.0 °C. Wind direction mainly northeast. Weather type: helder. Source: KNMI
March 6 » The First Fleet arrives at Norfolk Island in order to found a convict settlement.
June 11 » Russian explorer Gerasim Izmailov reaches Alaska.
June 21 » New Hampshire becomes the ninth state to ratify the Constitution of the United States.
July 25 » Wolfgang Amadeus Mozart completes his Symphony No. 40 in G minor (K550).
July 26 » New York ratifies the United States Constitution and becomes the 11th state of the United States.
September 13 » The Philadelphia Convention sets the date for the first presidential election in the United States, and New York City becomes the country's temporary capital.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I530815.php : accessed January 26, 2026), "Lambert van der Byl (1762-1788)".
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