August 29 - William Archibald Spooner, English writer (b. 1844)
September 15 - Milton Sills, American actor (b. 1882)
October 5 - Christopher Birdwood Thomson, 1st Baron Thomson
October 10 - Adolf Engler, German botanist (b. 1844)
November 4 - Buddy Bolden, American musician (b. 1877)
Events
January 6 - The first diesel-engine automobile trip is completed (from Indianapolis, Indiana, to New York City).
January 26 - The Indian National Congress declares 26 January as Independence Day or as the day for Poorna Swaraj (Complete Independence) which occurred 20 years later.
January 30 - The world's first radiosonde is launched in Pavlovsk, USSR.
February 3 - The Communist Party of Vietnam is established.
February 18 - While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
February 18 - Elm Farm Ollie becomes the first cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft.
March 4 - Terrible floods ransack Languedoc and the surrounds in south-west France, resulting in twelve departments being submerged by water and causing the death of over 700 people.
March 8 - Mahatma Gandhi starts civil disobedience in India.
March 12 - Mahatma Gandhi leads a 200-mile march known as Dandi March to the sea in defiance of British opposition, to protest the British monopoly on salt.
March 13 - The news of the discovery of Pluto is telegraphed to the Harvard College Observatory.
March 28 - Constantinople and Angora change their names to Istanbul and Ankara.
March 29 - Heinrich Brüning is appointed German Reichskanzler.
March 31 - The Motion Pictures Production Code is instituted, imposing strict guidelines on the treatment of sex, crime, religion and violence in film for the next thirty eight years.
April 4 - The Communist Party of Panama is founded.
April 5 - In an act of civil disobedience, Mohandas Gandhi breaks British law after marching to the sea and making salt.
April 6 - Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire." Thus he starts the Salt Satyagraha.
April 22 - The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
April 28 - The first night game in organized baseball history takes place in Independence, Kansas.
May 1 - The dwarf planet Pluto is officially named.
May 4 - British police arrest Mahatma Gandhi and place him in Yeravda Central Prison.
May 24 - Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly from England to Australia (she left on May 5 for the 11,000 mile flight).
May 27 - The 1,046-foot (319-meter) Chrysler Building in New York City, the tallest man-made structure at the time, opens to the public.
May 28 - The Chrysler Building in New York City officially opens.
June 9 - Chicago Tribune reporter Jake Lingle is killed during rush hour at the Illinois Central train station by the Leo Vincent Brothers, allegedly over a $100,000 USD gambling debt owed to Al Capone.
June 16 - Sovnarkom establishes decree time in the USSR.
June 17 - U.S. President Herbert Hoover signs the Smoot-Hawley Tariff Act into law.
June 18 - Groundbreaking ceremonies for the Franklin Institute held.
July 7 - Industrialist Henry J. Kaiser begins construction of the Boulder Dam (now known as Hoover Dam).
July 30 - In Montevideo, Uruguay wins the first Football World Cup.
July 31 - The radio mystery program The Shadow is aired for the first time.
August 16 - The first color sound cartoon, called Fiddlesticks, is made by Ub Iwerks.
August 29 - The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland.
September 6 - Democratically elected Argentine president Hip¨®lito Yrigoyen is deposed in a military coup.
September 8 - 3M begins marketing Scotch transparent tape.
September 12 - Wilfred Rhodes ends his 1110-game first-class career by taking 5 for 95 for H.D.G. Leveson Gower's XI against the Australians.
September 20 - Syro-Malankara Catholic Church is formed by Archbishop Mar Ivanios.
September 27 - Bobby Jones wins the U.S. Amateur Championship to complete the Grand Slam of golf. The old structure of the grand slam was the U.S. Open, British Open, U.S. Amateur, and British Amateur.
October 5 - British Airship R101 crashed in France en-route to India on its maiden voyage.
October 23 - The first miniature golf tournament was completed in Chattanooga, Tennessee.
October 24 - A bloodless coup d'état in Brazil ousts Washington Luís Pereira de Sousa, the last President of the First Republic. Getúlio Dornelles Vargas is then installed as "provisional president."
November 3 - Getúlio Dornelles Vargas becomes Head of the Provisional Government in Brazil after a bloodless coup on October 24.
November 11 - Patent number US1781541 was awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
November 18 - Sōka Kyōiku Gakkai, a Buddhist association later renamed Soka Gakkai, is founded by Japanese educators Tsunesaburo Makiguchi and Josei Toda.
December 2 - Great Depression: US President Herbert Hoover goes before the United States Congress and asks for a US$150 million public works program to help generate jobs and stimulate the economy.
December 7 - W1XAV in Boston, Massachusetts broadcasts video from the CBS radio orchestra program, The Fox Trappers. The broadcast also includes the first television commercial in the United States, an advertisement for I.J. Fox Furriers, who sponsored the radio show.
December 29 - Sir Muhammad Iqbal's presidential address in Allahabad introduces the Two-Nation Theory and outlines a vision for the creation of Pakistan.
