February 20 » The Postal Service Act, establishing the United States Post Office Department, is signed by United States President George Washington.
April 20 » France declares war against the "King of Hungary and Bohemia", the beginning of French Revolutionary Wars.
April 21 » Tiradentes, a revolutionary leading a movement for Brazil's independence, is hanged, drawn and quartered.
August 10 » French Revolution: Storming of the Tuileries Palace: Louis XVI of France is arrested and taken into custody as his Swiss Guards are massacred by the Parisian mob.
September 22 » Primidi Vendémiaire of year one of the French Republican Calendar as the French First Republic comes into being.
October 13 » In Washington, D.C., the cornerstone of the United States Executive Mansion (known as the White House since 1818) is laid.
Day of death October 7, 1866
The temperature on October 7, 1866 was about 18.9 °C. The air pressure was 1 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 58%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
May 1 » The Memphis Race Riots begin. In three days time, 46 blacks and two whites were killed. Reports of the atrocities influenced passage of the Fourteenth Amendment to the United States Constitution.
June 3 » The Fenians are driven out of Fort Erie, Ontario back into the United States.
June 7 » One thousand eight hundred Fenian raiders are repelled back to the United States after looting and plundering the Saint-Armand and Frelighsburg areas of Canada East.
July 27 » The first permanent transatlantic telegraph cable is successfully completed, stretching from Valentia Island, Ireland, to Heart's Content, Newfoundland.
August 20 » President Andrew Johnson formally declares the American Civil War over.
December 12 » Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers.
When copying data from this family tree, please include a reference to the origin: Hans Dunning, "Family tree Dunning", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dunning/R4808.php : accessed February 19, 2026), "Jan Kornelis Slagter (1792-1866)".
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.