Deaths on December 31

Archibald Hoxsey, American pilot (b. 1884)

Archibald Hoxsey (October 15, 1884 – December 31, 1910) was an American aviator who worked for the Wright brothers.

11 May

Glacier National Park (U.S.)
An act of the U.S. Congress establishes Glacier National Park in Montana.
4 Jul

Jack Johnson (boxer)
African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in a heavyweight boxing match, sparking race riots across the United States.
15 Jul

Alzheimer's disease
In his book Clinical Psychiatry, Emil Kraepelin gives a name to Alzheimer's disease, naming it after his colleague Alois Alzheimer.
18 Sep

Suffrage
In Amsterdam, 25,000 demonstrate for general suffrage.
7 Nov

Wright brothers
The first air freight shipment (from Dayton, Ohio, to Columbus, Ohio) is undertaken by the Wright brothers and department store owner Max Moorehouse.