January 24 » During the Seven Years' War the leading burghers of Königsberg submit to Elizabeth of Russia, thus forming Russian Prussia (until 1763).
May 21 » Ten-year-old Mary Campbell is abducted in Pennsylvania by Lenape during the French and Indian War. She is returned six and a half years later.
June 23 » Seven Years' War: Battle of Krefeld: British, Hanoverian, and Prussian forces defeat French troops at Krefeld in Germany.
June 30 » Seven Years' War: Habsburg Austrian forces destroy a Prussian reinforcement and supply convoy in the Battle of Domstadtl, helping to expel Prussian King Frederick the Great from Moravia.
July 8 » French forces hold Fort Carillon against the British at Ticonderoga, New York.
November 25 » French and Indian War: British forces capture Fort Duquesne from French control. Later, Fort Pitt will be built nearby and grow into modern Pittsburgh.
Day of marriage June 5, 1785
The temperature on June 5, 1785 was about 15.0 °C. There was 110 mm of rainWind direction mainly south east. Weather type: betrokken regen. Source: KNMI
January 7 » Frenchman Jean-Pierre Blanchard and American John Jeffries travel from Dover, England, to Calais, France, in a gas balloon.
January 20 » Invading Siamese forces attempt to exploit the political chaos in Vietnam, but are ambushed and annihilated at the Mekong river by the Tây Sơn in the Battle of Rạch Gầm-Xoài Mút.
January 27 » The University of Georgia is founded, the first public university in the United States.
November 28 » The first Treaty of Hopewell is signed, by which the United States acknowledges Cherokee lands in what is now East Tennessee.
When copying data from this family tree, please include a reference to the origin: Gerard Mutter, "Family tree De Duffelt", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-duffelt/I123733.php : accessed March 4, 2026), "Rutgerus "1758 " Rademaker (1758-????)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.