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The timeline of historic inventions is a chronological list of particularly important or significant ... On 16 January 1930, Whittle submitted his first patent ...
Ruth Wakefield of Whitman, Massachusetts, invented chocolate chips and chocolate chip cookies in 1930. Her new cookie invention was called the "Toll House Cookie" which used broken-up bars of semi-sweet chocolate. [236] 1930 Thermistor. A thermistor is a type of resistor with electrical resistance inversely proportional to its temperature.
March 5 – Danish painter Einar Wegener begins to undergo sexual reassignment surgery in Germany and takes the name Lili Elbe.; July 10 – Mental Treatment Act 1930 in the United Kingdom provides for free voluntary treatment for psychiatric conditions and for psychiatric outpatient clinics, replaces the term "asylum" with "mental hospital" and reorganises the Board of Control for Lunacy and ...
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
1930 – Frozen vegetables, packaged by Clarence Birdseye, become the first frozen food to go on sale; 1930 – The Democrats take Congress in the Midterms. Will keep it until 1946. 1930 - Hawley-Smoot Tariff; 1930 - Clyde Tombaugh discovered Pluto; 1930 - Sinclair Lewis is the first American to win Nobel Prize for Literature
The nickname stuck, both to Drew's improved masking tape, and to his 1930 invention, Scotch Brand cellulose tape. In 1930 he came up with the world's first transparent cellophane adhesive tape (called sellotape in the UK and Scotch tape in the United States).
1930–1931 – Crazy Horse’s lifelong friend, He Dog, is interviewed by journalist Eleanor Hinman and Nebraska writer Mari Sandoz. A record drought in the eastern part of the nation [ 5 ] sees Upper Tract , West Virginia record only 9.50 inches (241.3 mm) of precipitation for the year – the record lowest for a calendar year in the US east ...