Events January–February January 9 – Lithuania begins the Klaipėda Revolt to annex the Klaipėda Region (Memel Territory). January 11 – Despite strong British protests, troops from France and Belgium occupy the Ruhr area, to force Germany to make reparation payments. January 17 (or 9) – First flight of the first rotorcraft, Juan de la Cierva's Cierva C.4 autogyro, in Spain. (It is first demonstrated to the military on January 31.) February 5 – Australian cricketer Bill Ponsford makes 429 runs to break the world record for the highest first-class cricket score for the first time in his third match at this level, at Melbourne Cricket Ground, giving the Victoria cricket team an innings total of 1,059. February 9 – Billy Hughes, having resigned as Prime Minister of Australia, after the Country Party refuses to govern in coalition with him as the leader of the Nationalist Party, is succeeded by Stanley Bruce. A Liberal–National Coalition will persist in the politics of Australia for at least 95 years. March–April March 1 - Eskom, the largest electricity producer in Africa, is established in South Africa. March 6 – The Egyptian Feminist Union (Arabic: الاتحاد النسائي المصري), the first nationwide feminist movement in Egypt, is founded at the home of activist Huda Sha'arawi. March 9 – Vladimir Lenin suffers his third stroke, which renders him bedridden and unable to speak; consequently he retires from his position as Chairman of the Soviet government. March 17 – Dobrolyot is formed as the first Soviet civil aviation service; it will become part of flag carrier Aeroflot. March 18 – In the Bronx, Yankee Stadium hosts its first game. Babe Ruth hits a three-run homer to defeat the Boston Red Sox 4-1. March 23 – A 7.3 earthquake shakes the Chinese province of Sichuan killing 4,800 people. March 28 – Regia Aeronautica, the air force of Fascist Italy, is founded. April 6 – The first Prefects Board in Southeast Asia is formed, in Victoria Institution, Federated Malay States. April 12 – The Kandersteg International Scout Centre comes into existence in Switzerland. April 19 Hjalmar Branting leaves office as Prime Minister of Sweden, after the Swedish Riksdag has rejected a government proposal regarding unemployment benefits. Right-wing academic and jurist Ernst Trygger succeeds him. The Egyptian Constitution of 1923 is adopted, introducing a parliamentary system of democracy in the country. April 23 – The Gdynia seaport is inaugurated, on the