Births on June 24

Samuel Johnson, Nigerian priest and historian (d. 1901)

The Rev. Samuel Johnson (24 June 1846 – 29 April 1901) was an Anglican priest and historian of the Yoruba.

11 May

Mexican-American War
President James K. Polk asked for a Declaration of War against Mexico, starting the Mexican-American War. It is approved on May 13.
7 Jul

Conquest of California
American troops occupy Monterey and Yerba Buena, thus beginning the conquest of California.
10 Sep

Sewing machine
Elias Howe is granted a patent for the sewing machine.
24 Sep

Zachary Taylor
Mexican-American War: General Zachary Taylor captures Monterrey.
16 Oct

Ether Dome
William T. G. Morton first demonstrated ether anesthesia at the Massachusetts General Hospital in the Ether Dome.