January 11 » William Herschel discovers Titania and Oberon, two moons of Uranus.
February 3 » Militia led by General Benjamin Lincoln crush the remnants of Shays' Rebellion in Petersham, Massachusetts.
May 13 » Captain Arthur Phillip leaves Portsmouth, England, with eleven ships full of convicts (the "First Fleet") to establish a penal colony in Australia.
June 20 » Oliver Ellsworth moves at the Federal Convention to call the government the 'United States'.
September 17 » The United States Constitution is signed in Philadelphia.
October 29 » Mozart's opera Don Giovanni receives its first performance in Prague.
Christening day September 30, 1787
The temperature on September 30, 1787 was about 8.0 °C. Source: KNMI
January 25 » Shays's Rebellion: The rebellion's largest confrontation, outside the Springfield Armory, results in the killing of four rebels and the wounding of twenty.
May 25 » After a delay of 11 days, the United States Constitutional Convention formally convenes in Philadelphia after a quorum of seven states is secured.
September 17 » The United States Constitution is signed in Philadelphia.
September 28 » The Congress of the Confederation votes to send the newly-written United States Constitution to the state legislatures for approval.
December 7 » Delaware becomes the first state to ratify the United States Constitution.
December 18 » New Jersey becomes the third state to ratify the U.S. Constitution.
When copying data from this family tree, please include a reference to the origin: J. Post, "Genealogy Post-Oost", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-post-oost/I79591.php : accessed May 31, 2024), "Cornelis Johannes Heijboer (1787-????)".
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