Births on January 10

Pierre Cogan, French cyclist (d. 2013)

Pierre Cogan (10 January 1914 – 5 January 2013) was a French professional cyclist who competed between the 1930s and the 1950s.

28 Jun

Assassination of Archduke Franz Ferdinand of Austria
Archduke Franz Ferdinand of Austria and his wife Sophie are assassinated in Sarajevo; this is the casus belli of World War I.
26 Jul

Bulgaria
Serbia and Bulgaria interrupt diplomatic relationship.
5 Aug

Traffic light
In Cleveland, Ohio, the first electric traffic light is installed.
15 Aug

Frank Lloyd Wright
A servant of American architect Frank Lloyd Wright murders seven people and sets fire to the living quarters of Wright's Wisconsin home, Taliesin.
1 Sep

Petrograd
St. Petersburg, Russia, changes its name to Petrograd.