6th January » The first Diesel engine diesel-engined automobile trip is completed, from Indianapolis Indianapolis, Indiana, to New York City New York, New York.
26th January » The Indian National Congress declares 26 January as Independence Day or as the day for Purna Swaraj named Poorna Swaraj ("Complete Independence") which occurred 17 years later.
16th February » The Romanian Football Federation joins FIFA.
18th February » While studying photographs taken in January, Clyde Tombaugh discovers Pluto.
18th February » Elm Farm Ollie becomes the first cattle named cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft.
6th March » International Unemployment Day demonstrations globally initiated by the Comintern
12th March » Mahatma Gandhi leads a 200-mile march, known as the 'Salt Satyagraha Salt March', to the sea in defiance of United Kingdom British opposition, to protest the British Empire British monopoly on salt
13th March » The news of the discovery of Pluto is telegraphed to the Harvard College Observatory.
28th March » Constantinople and Ankara named Angora change their names to Istanbul and Ankara.
29th March » Heinrich Brüning is appointed German Chancellor of Germany (German Reich) named Reichskanzler.
31st March » The Motion Picture Production Code is instituted, imposing strict guidelines on the treatment of sex, crime, religion and violence in film, in the U.S., for the next thirty-eight years.
2nd April » After the mysterious death of Empress Zewditu I known as Zewditu, Haile Selassie is proclaimed emperor of Ethiopia.
4th April » The Communist Party of Panama is founded.
6th April » Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire," beginning the Salt Satyagraha.
18th April » BBC reported there was no news, then played out with piano music.
22nd April » The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
28th April » The first night game in organized baseball history takes place in Independence, Kansas.
1st May » The dwarf planet Pluto is officially named.
24th May » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
27th May » The convert 1046 ft m Chrysler Building in New York City, the List of tallest buildings in the world tallest man-made structure at the time, opens to the public.
9th June » A 'Chicago Tribune' reporter, Jake Lingle, is killed during rush hour at the Illinois Central train station by Leo Vincent Brothers, allegedly over a $100,000 gambling debt owed to Al Capone.
16th June » Sovnarkom establishes decree time in the USSR.
17th June » President of the United States or U.S. President Herbert Hoover signs the Smoot-Hawley Tariff Act into law.
18th June » Groundbreaking ceremonies for the Franklin Institute are held.
21st June » One-year conscription comes into force in France.
7th July » Industrialist Henry J. Kaiser begins construction of the Boulder Dam (now known as Hoover Dam).
11th July » Australian cricketer Donald Bradman scores a world record 309 runs in one day, on his way to the List of Test cricket records Innings or series highest individual Test innings of 334, during a Test cricket Test match against England cricket team England.
30th July » In Montevideo, Uruguay national football team e.g Uruguay wins the 1930 FIFA World Cup known as first FIFA World Cup.
31st July » The Radio drama e.g radio mystery program 'The Shadow' airs for the first time.
6th August » Judge Joseph Force Crater steps into a Taxicab named taxi in New York and disappears never to be seen again.
7th August » The last confirmed lynching of blacks in the Northern United States occurs in Marion, Indiana. Two men, Thomas Shipp and Abram Smith, are killed.
9th August » Betty Boop makes her cartoon debut in 'Dizzy Dishes'.
16th August » The first color sound cartoon, called 'Fiddlesticks (film) or Fiddlesticks', is made by Ub Iwerks.
16th August » The first Commonwealth Games or British Empire Games were opened in Hamilton, Ontario by the Governor General of Canada, the Freeman Freeman-Thomas, 1st Marquess of Willingdon named Viscount Willingdon.
29th August » The last 36 remaining inhabitants of St Kilda, Scotland named St Kilda are voluntarily evacuated to other parts of Scotland.
6th September » Democratically elected Argentina known as Argentine president Hipólito Yrigoyen is History of Argentina World War II called deposed in a military coup.
8th September » 3M begins marketing Scotch Tape or Scotch transparent tape.
20th September » Syro-Malankara Catholic Church is formed by Archbishop Mar Ivanios.
5th October » British Airship R101 crashes in France 'en route' to India on its maiden voyage.
2nd November » Haile Selassie is crowned emperor of Ethiopia.
3rd November » Getúlio Dornelles Vargas becomes Head of the Provisional Government in Brazil after a bloodless coup on October 24.
11th November » Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
18th November » Soka Kyoiku Gakkai, a Buddhist association later renamed Soka Gakkai, is founded by Japanese educators Tsunesaburo Makiguchi and Josei Toda.
2nd December » Great Depression: In a State of the Union address or State of the Union message, U.S. President Herbert Hoover proposes a US$150 million public works program to help generate jobs and stimulate the economy.
7th December » W1WX W1XAV in Boston Boston, Massachusetts telecasts video from the CBS radio orchestra program, 'The Fox Trappers'. The telecast also includes the first Television advertisement television commercial in the United States, an advertisement for I.J. Fox Fu