On This Day

What Happened in September 1749

Famous Birthdays

  • Sep 8 Yolande de Polastron, Duchess de Polignac, French aristocrat, born in Paris (d. 1793)
  • Sep 8 Marie Thérèse Louise of Savoy, Princesse de Lamballe, French aristocrat, born in Palazzo Carignano, Turin, Savoy (d. 1792)

Person of interestJean Baptiste Joseph Delambre

Sep 19 Jean Baptiste Joseph Delambre, French mathematician and astronomer (The History of Astronomy), born in Amiens, France (d. 1822)

Mathematician and Astronomer Jean Baptiste Joseph Delambre
Mathematician and Astronomer
Jean Baptiste Joseph Delambre

Famous Deaths

  • Sep 10 Émilie du Châtelet, French mathematician and physicist (b. 1706)
  • Sep 14 Richard Temple, 1st Viscount Cobham, English soldier and politician, dies at 73