of Cruelty to Animals (ASPCA) is founded in New York City by Henry Bergh. 1868 – At Arogee in Abyssinia, British and Indian forces defeat an army of Emperor Tewodros II. While 700 Ethiopians are killed and many more injured, only two British/Indian troops die. 1872 – The first Arbor Day is celebrated in Nebraska. 1875 – India: Arya Samaj is founded in Mumbai by Swami Dayananda Saraswati to propagate his goal of social reform. 1887 – On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America. 1896 – 1896 Summer Olympics: The Olympic marathon is run ending with the victory of Greek athlete Spyridon Louis. 1900 – British suffer a sharp defeat by the Boers south of Brandfort. 600 British troops are killed and wounded and 800 taken prisoner. 1901–present 1912 – RMS Titanic sets sail from Southampton, England on her maiden and only voyage. 1916 – The Professional Golfers' Association of America (PGA) is created in New York City. 1919 – Mexican Revolution leader Emiliano Zapata is ambushed and shot dead by government forces in Morelos. 1919 – The Third Regional Congress of Peasants, Workers and Insurgents is held by the Makhnovshchina at Huliaipole. 1925 – The Great Gatsby by F. Scott Fitzgerald is first published in New York City, by Charles Scribner's Sons. 1938 – The 1938 German parliamentary election and referendum seeks approval for a single list of Nazi candidates and the recent annexation of Austria. 1939 – Alcoholics Anonymous, A.A.'s "Big Book", is first published. 1941 – World War II: The Axis powers establish the Independent State of Croatia. 1944 – Rudolf Vrba and Alfréd Wetzler escape from Birkenau death camp. 1963 – One hundred twenty-nine American sailors die when the submarine sinks at sea. 1968 – The TEV Wahine, a New Zealand ferry sinks in Wellington harbour due to a fierce storm – the strongest winds ever in Wellington. Out of the 734 people on board, fifty-three died. 1970 – Paul McCartney announces that he is leaving The Beatles for personal and professional reasons. 1971 – Ping-pong diplomacy: In an attempt to thaw relations with the United States, China hosts the U.S. table tennis team for a week-long visit. 1972 – Tombs containing bamboo slips, among them Sun Tzu's Art of War and Sun Bin's lost military treatise, are accidentally discovered by construction workers in Shandong. 1972 – Vietnam