part of the Department of Commerce. March 4–6 – First Balkan War – Battle of Bizani: Forces of the Kingdom of Greece capture the forts of Bizani (covering the approaches to Ioannina) from the Ottoman Empire. March 7 – British freighter Alum Chine, carrying 343 tons of dynamite, explodes in Baltimore harbour. March 13 – Mexican Revolution: Pancho Villa returns to Mexico, from his self-imposed exile in the United States. March 17 – The Military Aviation Academy (Escuela de Aviación Militar) is founded in Uruguay, to become the Military Air Force (Fuerza Aérea Militar) on 4 December 1952 (the Uruguayan Air Force (FAU) will grow from this foundation). March 18 – King George I of Greece is assassinated after 50 years on the throne; he is succeeded by his son Constantine I. March 20 – Sung Chiao-jen, a founder of the Chinese nationalist party (Kuomintang), is wounded in an assassination attempt, and dies two days later. The city of Canberra, the center of the Australian Capital Territory, becomes the official capital of the Commonwealth of Australia. March 23 – Supporters of Phan Xích Long begin a revolt against colonial rule in French Indochina. March 25 – The Great Dayton Flood, after four days of rain in the Miami Valley, kills over 360 and destroys 20,000 homes (chiefly in Dayton, Ohio). March 26 Mexican Revolution: Venustiano Carranza announces his Plan of Guadalupe, and begins his rebellion against Victoriano Huerta's government, as head of the Constitutionals. Balkan Wars: The Siege of Adrianople ends, when Bulgarian forces take Adrianople from the Ottomans. April April – Bernhard Kellermann's novel Der Tunnel is published. April 5 – The United States Soccer Federation is formed. April 8 – The Seventeenth Amendment to the United States Constitution is passed, dictating the direct election of senators. April 21 – Cunard ocean liner , built by John Brown & Company, is launched on the River Clyde. April 24 – The Woolworth Building opens in New York City. Designed by Cass Gilbert, it is the tallest building in the world on this date, and for more than a decade after. May May 3 – Raja Harishchandra, the first full-length Indian feature film, is released, marking the beginning of the Indian film industry. May 9–July 11 – A major industrial strike occurs in the Black Country of England, involving 25,000 workers, and threatening preparations for World War I in naval and