Polish Corridor. April 26 – Prince Albert, Duke of York (later George VI, King of the United Kingdom) marries Lady Elizabeth Bowes-Lyon (later Queen Elizabeth The Queen Mother) in Westminster Abbey. April 28 – The original Wembley Stadium in London, England, opens its doors to the public for the first time, staging the FA Cup Final between Bolton Wanderers and West Ham United. May–June May 9 Southeastern Michigan receives a record of snow, after temperatures plummeted from 17 °F to 1 °F (-8 °C to -17 °C) between 1 and 6 pm on the previous day. The premiere of Bertolt Brecht's play In the Jungle (Im Dickicht), at the Residenztheater in Munich, is interrupted by Nazi demonstrators. May 20 – British Prime Minister Bonar Law resigns, due to ill health. May 23 Stanley Baldwin is appointed British Prime Minister. Belgium's Sabena Airlines is created. May 24 – The Irish Civil War ends. May 26 – The first 24 Hours of Le Mans motor race is held, and is won by André Lagache and René Léonard. May 27 – The Ku Klux Klan in the United States defies a law requiring publication of its membership. June 9 – A military coup in Bulgaria ousts prime minister Aleksandar Stamboliyski (he is killed June 14). June 12 – William Walton's Façade is performed for the first time, in London. June 13 – President Li Yuanhong of China abandons his residence because a warlord has commanded forces to surround the mansion and cut off its water and electric supplies in order to force him to abandon his post. June 16 – The storming of Ayan, Siberia concludes the Yakut Revolt and the Russian Civil War. June 18 – Mount Etna erupts in Italy, making 60,000 homeless. July–August July 10 – Large hailstones kill 23 people in Rostov, Soviet Union. July 13 The Hollywood Sign is inaugurated in California (originally reading Hollywoodland). American explorer Roy Chapman Andrews discovers the first dinosaur eggs near Flaming Cliffs, Mongolia. July 20 – Pancho Villa is assassinated at Hidalgo del Parral, Chihuahua. July 24 – The Treaty of Lausanne (1923), settling the boundaries of the modern Republic of Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in the First World War, bringing an end to the Ottoman Empire after 624 years. July – Hyperinflation in the Weimar Republic (Germany) has seen the number of