The year of 1925 (MCMXXV) was a common year starting on Thursday of the Gregorian calendar.
January 3: Benito Mussolini (Il Duce) announces he is taking dictatorial powers over Italy.
January 27-February 1: The 1925 serum run to Nome (the "Great Race of Mercy") relays diphtheria antitoxin by dog sled across the U.S. territory of Alaska, to combat
February 2: The 1925 Charlevoix-Kamouraska earthquake strikes northeastern North America.
February 20: The 'phantom stabber' of Bridgeport, Conn., appears. Stabbing young girls at night, though sometimes during the day: in streets, in departments stores
and other public places. The attacks continue until at least 1st June 1928. (Books896)
February 21: The New Yorker magazine publishes its first issue.
March 4: Calvin Coolidge becomes the first President of the United States to have his inauguration broadcast on radio.
March 6: Pionerskaya Pravda, one of the oldest children's newspapers in Europe, is founded in the Soviet Union.
March 18: The Tri-State Tornado rampages through Missouri, Illinois, and Indiana, killing 695 people and injuring 2,027. It hits the towns of Murphysboro, Illinois;
Gorham, Illinois; Ellington, Missouri; and Griffin, Indiana.
March 21: Tennessee Governor Austin Peay signs the Butler Act, prohibiting the teaching of evolution in the state's public schools.
April 1: Frank Heath and his horse Gypsy Queen leave Washington, D.C. to begin a two-year journey to visit all 48 states.
April 10: F. Scott Fitzgerald publishes The Great Gatsby.
April 16: The Communist St. Nedelya Church assault claims the lives of 150 and injures 500 in the Bulgarian capital, Sofia.
May 5: Scopes Trial: Dayton, Tennessee, biology teacher John Scopes is arrested for teaching Charles Darwin's Theory of Evolution.
May 8: Tom Lee rescues 32 people from the M.E. Norman, a sinking steamboat.
May 25: Scopes Trial: John T. Scopes is indicted for teaching Darwin's theory of evolution.
May 26: Flight Seargent Frank Lowrey and Pilot Officer John Kenneth Smith were making radio tests over Hampshire, England. On not hearing from his colleague for some
time Smith looked to the rear cockpit to see black smoke and his companion dead. There was nothing in the wireless set likely to kill a man. (Books957)
May 27: A new star is discovered in the southern constellation Pictor. By spectreoscopic determination, its distance is 'determined' to be 540 light years.
May 29: The British explorer Percy Fawcett sends a last telegram to his wife, before he disappears in the Amazon.
June 13: Charles Francis Jenkins achieves the first synchronized transmission of pictures and sound, using 48 lines, and a mechanical system. A 10-minute film of a
miniature windmill in motion is sent across 5 miles from Anacostia to Washington, DC. The images are viewed by representatives of the National Bureau of Standards, the U.S. Navy, the Commerce
Department, and others. Jenkins calls this "the first public demonstration of radiovision".
June 29: Santa Barbara Earthquake of 1925: A 6.3 earthquake destroys downtown Santa Barbara, California.
July 10: Scopes Trial: In Dayton, Tennessee, the so-called "Monkey Trial" begins with John T. Scopes, a young high school science teacher, accused of teaching
evolution in violation of a Tennessee state law.
July 18: Adolf Hitler publishes his personal manifesto Mein Kampf.
July 21: Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100.
July 22: A young boy is injured by a mysterious explosion occuring at his mothers house, South lambeth, London. Injured in the face, chest and hand
a search failed to discover the source of the explosion. (Books944)
July 25: The Telegraph Agency of the Soviet Union (TASS) is established.
August 25: The French evacuate the Ruhr region of Germany.
September 3: The U.S. dirigible Shenandoah breaks up en route to Scottfield, St. Loius, USA. 14 of the crew are killed.
September 28: "Night of Sept. 28-29, 1925 a picture fell in Mrs. M's (the landlady) room." (Books979)
October 30: John Logie Baird creates Britain's first television transmitter.
November 6: Secret agent Sidney Reilly is executed by the OGPU, the secret police of the Soviet Union.
November 24: The silent film Hussar of the Dead is released in Santiago de Chile.
November 26: Prajadhipok (Rama VII) is crowned as King of Siam.
November 28: The country-variety show Grand Ole Opry makes its radio debut on station WSM (it later becomes the longest-running live music show).
December 26: The Great Sphinx of Giza is unearthed after restoration.