César-François Cassini de Thury, French astronomer and cartographer (b. 1714)
César-François Cassini de Thury (17 June 1714 – 4 September 1784), also called Cassini III or Cassini de Thury, was a French astronomer and cartographer.

1784Sep, 4
César-François Cassini de Thury
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Events on 1784
- 23Aug
State of Franklin
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. - 22Oct
Kodiak Island
Russia founds a colony on Kodiak Island, Alaska.