January 25, 1915 – Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.

February 14, 1915 – New Year’s Day in Chinese calendar. Start of the year of the Wood Rabbit in Chinese astrology.

February 22, 1915 – World War I: Germany institutes unrestricted submarine warfare.

April 25, 1915 – World War I: The Battle of Gallipoli begins—The invasion of the Turkish Gallipoli Peninsula by Australian, British, French and New Zealand troops begins with landings at Anzac Cove and Cape Helles.

May 22, 1915 – Lassen Peak erupts with a powerful force, and is the only mountain other than Mount St. Helens to erupt in the continental US during the 20th century.

June 16, 1915 – Foundation of the British Women’s Institute.

July 7, 1915 – Militia officer Henry Pedris executed by firing squad at Colombo, Ceylon - an act widely regarded as a miscarriage of justice by the British colonial authorities.

August 6, 1915 – World War I: Battle of Sari Bair – the Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.

August 17, 1915 – A Category 4 hurricane hits Galveston, Texas with winds at 135 mph.

November 1, 1915 – Parris Island is officially designated a US Marine Corps Recruit Depot.

January 6, 1915 – Alan Watts, English writer/philosopher (d. 1973)

January 18, 1915 – Vassilis Tsitsanis, Greek singer and songwriter (d. 1984)

February 11, 1915 – Patrick Leigh Fermor, English author

April 16, 1915 – Gerard McLarnon, Irish playwright (d. 1997)

April 29, 1915 – Donald Mills, American singer (Mills Brothers) (d. 1999)

May 20, 1915 – Peter Copley, British actor (d. 2008)

June 12, 1915 – Christopher Mayhew, British politician (d. 1997)

September 28, 1915 – Ethel Rosenberg, Soviet spy, (d. 1953)

October 15, 1915 – Yitzhak Shamir, Israeli politician

December 21, 1915 – Werner von Trapp, member of the Trapp Family Singers (d. 2007)