1929This year marked the end of a period known in American history as the Roaring Twenties after the Wall Street Crash of 1929 ushered in a worldwide Great Depression. In the Americas, an agreement was brokered to end the Cristero War, a Catholic counter-revolution in Mexico. The Judicial Committee of the Privy Council, a British high court, ruled that Canadian women are persons in the Edwards v. Canada (Attorney General) case. The 1st Academy Awards for film were held in Los Angeles, while the Museum of Modern Art opened in New York City.
1930January 1930 January 15 – The Moon moves into its nearest point to Earth, called perigee, at the same time as its fullest phase of the Lunar Cycle. This is the closest moon distance at in recent history, and the next one will be on January 1, 2257, at . January 26 – The Indian National Congress declares this date as Independence Day, or as the day for Poorna Swaraj (Complete Independence). January 28 – The first patent for a field-effect transistor is granted in the United States, to Julius Edgar Lilienfeld.
1932January 1932 January 4 – The British authorities in India arrest and intern Mahatma Gandhi and Vallabhbhai Patel. January 9 – Sakuradamon Incident: Korean nationalist Lee Bong-chang fails in his effort to assassinate Emperor Hirohito of Japan. The Kuomintang's official newspaper runs an editorial expressing regret that the attempt failed, which is used by the Japanese as a pretext to attack Shanghai later in the month. January 22 – The 1932 Salvadoran peasant uprising begins; it is suppressed by the government of Maximiliano Hernández Martínez.
1906January 12 – Persian Constitutional Revolution: A nationalistic coalition of merchants, religious leaders and intellectuals in Persia forces the shah Mozaffar ad-Din Shah Qajar to grant a constitution, and establish a national assembly, the Majlis. January 16–April 7 – The Algeciras Conference convenes, to resolve the First Moroccan Crisis between France and Germany. January 22 – The strikes a reef off Vancouver Island, Canada, killing over 100 (officially 136) in the ensuing disaster.
1910January 1910 January 6 – Abé people in the French West Africa colony of Côte d'Ivoire rise against the colonial administration; the rebellion is brutally suppressed by the military. January 8 – By the Treaty of Punakha, the Himalayan kingdom of Bhutan becomes a protectorate of the British Empire. January 11 – Charcot Island is discovered by the Antarctic expedition led by French explorer Jean-Baptiste Charcot on the ship Pourquoi Pas? Charcot returns from his expedition on February 11.
1922January 1922 January 7 – Dáil Éireann, the parliament of the Irish Republic, ratifies the Anglo-Irish Treaty by 64–57 votes. January 10 – Arthur Griffith is elected President of Dáil Éireann, the day after Éamon de Valera resigns. January 11 – The first successful insulin treatment of diabetes is made, by Frederick Banting in Toronto. January 15 – Michael Collins becomes Chairman of the Provisional Government of the Irish Free State. January 26 – Italian forces occupy Misrata, Libya; the reconquest of Libya begins.
