Births on December 9

Maddalena Laura Sirmen, Italian violinist and composer (d. 1818)

Maddalena Sirmen (9 December 1745 – 18 May 1818) was an Italian composer, violinist, and singer.

11 May

Battle of Fontenoy
War of the Austrian Succession: Battle of Fontenoy: French forces defeat an Anglo-Dutch-Hanoverian army.
28 Jun

Siege of Louisbourg (1745)
A New England colonial army captures the French fortifications at Louisbourg (New Style).
19 Aug

Jacobite rising of 1745
Prince Charles Edward Stuart raises his standard in Glenfinnan: The start of the Second Jacobite Rebellion, known as "the 45".
19 Aug

Battle of Kars (1745)
Ottoman-Persian War: In the Battle of Kars, the Ottoman army is routed by Persian forces led by Nader Shah.
8 Nov

Battle of Culloden
Charles Edward Stuart invades England with an army of ~5000 that would later participate in the Battle of Culloden.