whose verdict will spark protests around the world. July 17 – The Republic of Mirdita is proclaimed near the Albanian-Serbian border, with Yugoslav support. July 21 Rif War: Battle of Annual – Spanish troops are dealt a crushing defeat at the hands of Abd el-Krim in Morocco. Edward Harper, the "father of broadcasting" in Ceylon, arrives in Colombo to take up his post as Chief Engineer of the Ceylon Telegraph Department. July 23 – 1st National Congress of the Chinese Communist Party opens in Shanghai. July 26 – U.S. President Warren G. Harding receives Princess Fatima of Afghanistan who is escorted by imposter Stanley Clifford Weyman. July 27 – Researchers at the University of Toronto, led by biochemist Frederick Banting, announce the discovery of the hormone insulin. July 29 – Adolf Hitler becomes Führer of the Nazi Party in Germany. August August 5 – The first radio baseball game is broadcast: Harold Arlin announces the Pirates-Phillies game from Forbes Field over Westinghouse KDKA in Pittsburgh. August 11 Franklin D. Roosevelt's paralytic illness strikes while he is vacationing; on August 25 he is diagnosed with polio and aged 39 becomes permanently disabled. The temperature reaches 39 degrees Celsius in Breslau; the heat wave continues elsewhere in Europe as well. August 23 – King Faisal I of Iraq is crowned in Baghdad. August 24 – R38-class airship ZR-2 explodes on her fourth test flight near Kingston upon Hull, England, killing 44 of the 49 Anglo-American crew on board. August 25 – The Battle of Blair Mountain, the largest labor uprising in United States history and the country's largest peacetime armed uprising, begins in Logan County, West Virginia as part of the Coal Wars, continuing until September 2. August 26 Rising prices cause major riots in Munich. Following the assassination of former Finance Minister Matthias Erzberger by right-wing terrorists, the German government declares martial law. September September 1 – Poplar Rates Rebellion: Nine members of the borough council of Poplar, London, are arrested. September 8 – Margaret Gorman, 16, wins the Golden Mermaid trophy at a beauty pageant in Atlantic City, New Jersey; officials later dub her the first Miss America. September 13 – White Castle hamburger restaurant opens in Wichita, Kansas, foundation of the world's first fast food chain. September 21 – The Oppau explosion occurs at BASF's nitrate factory in Oppau, Germany; 500–600 are killed. September 28 – Sauerländer Heimatbund is