January 1, 1923
Population exchange between Greece and Turkey — 1923 agreement between Greece and Turkey
1923 conflict in Utah with the Ute and Paiute
1923 South American Championship — football tournament
Italian battle in Libya, year 1923
Agreement on the borders of the British Mandate of Palestine and the French Mandate of Syria
Treaty of Lausanne — 1923 peace treaty between Turkey and the Allies
1923 agreement between Mexico and the United States
1923 Great Kantō Earthquake — earthquake
Political unrest in Poland in 1923
Beer Hall Putsch — attempted coup d'état in Weimar Republic