27 March 1915

Typhoid Mary, the first healthy carrier of disease ever identified in the United States, is put in quarantine for the second time, where she would…

5 June 1915

Denmark amends its constitution to allow women’s suffrage. Women’s suffrage refers to the right of women to vote in elections. It was a significant movement…

26 April 1915

World War I: Italy secretly signs the Treaty of London pledging to join the Allied Powers. The Treaty of London, officially signed on April 26,…

21 January 1915

Kiwanis International is founded in Detroit. Kiwanis International is a global service organization dedicated to improving the lives of children and communities. It was founded…

25 November 1915

Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.

25 January 1915

Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.

22 January 1915

Over 600 people are killed in Guadalajara, Mexico, when a train plunges off the tracks into a deep canyon.

27 March 1915

Typhoid Mary, the first healthy carrier of disease ever identified in the United States is put in quarantine for the second time, where she would…

20 March 1915

Albert Einstein publishes his general theory of relativity. [rdp-wiki-embed url=’https://en.wikipedia.org/wiki/General_relativity’]