WHAT ALL HAPPENED JANUARY TO OCTOBER 1923
Find out what all happened January to October 1923

Greece becomes the last European country to adopt the Gregorian calendar. (15. February 1923)

Gustav Stresemann resumes the Weimar Republic's payment of reparations. (26. September 1923)

The Great Kantō earthquake devastates Tokyo and Yokohama, killing about 105,000 people. (1. September 1923)

Lithuanian residents of the Memel Territory rebel against the League of Nations' decision to leave the area as a mandated region under French control. (9. January 1923)

Insulin becomes generally available for use by people with diabetes. (15. April 1923)

Bulgaria's military takes over the government in a coup. (9. June 1923)

Occupation of the Ruhr: Troops from France and Belgium occupy the Ruhr area to force Germany to make its World War I reparation payments. (11. January 1923)

In Vienna, the paper Das Ich und das Es (The Ego and the Id) by Sigmund Freud is published, which outlines Freud's theories of the id, ego, and super-ego. (24. April 1923)

Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS. (1. January 1923)

The first Prefects Board in Southeast Asia is formed in Victoria Institution, Malaysia. (6. April 1923)

Turkey becomes a republic following the dissolution of the Ottoman Empire. (29. October 1923)

The great powers of World War I withdraw from Istanbul. (6. October 1923)

Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH-4B biplane (25. June 1923)

The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey. (26. April 1923)

Juan de la Cierva makes the first autogyro flight. (9. January 1923)

The royalist Leonardopoulos–Gargalidis coup d'état attempt fails in Greece, discrediting the monarchy and paving the way for the establishment of the Second Hellenic Republic. (22. October 1923)

Capt. Lowell Smith and Lt. John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours. (23. August 1923)

The first of 160 consecutive days of 100º Fahrenheit at Marble Bar, Australia. (31. October 1923)

The Hollywood Sign is officially dedicated in the hills above Hollywood, Los Angeles, California. It originally reads "Hollywoodland " but the four last letters are dropped after renovation in 1949. (13. July 1923)

Maiden flight of the first U.S. airship, the USS Shenandoah. (4. September 1923)