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In the 1870s, two inventors Elisha Gray and Alexander Graham Bell both independently designed devices that could transmit speech electrically (the telephone).
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On January 29, Karl Benz received the first patent (DRP No. 37435) for a gas-fueled car.
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The Great Migration was the movement of 6 million blacks out of the Southern United States to the Northeast, Midwest and West from 1910 to 1930.
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In the 1920’s, the amendment went into affect and prohibited the invent and sale of alcohol in America
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The Nineteenth Amendment (Amendment XIX) to the United States Constitution prohibits any United States citizen to be denied the right to vote based on sex.
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The Emergency Quota Act (Emergency Immigration Act of 1921, the Immigration Restriction Act of 1921, the Per Centum Law, and the Johnson Quota Act) restricted immigration into the United States.
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A system for transmitting visual images and sound that are reproduced on screens, chiefly used to broadcast programs for entertainment.
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When radio went public. in the United States. The transmission and reception of electromagnetic waves of radio frequency, esp. those carrying sound messages.
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A United States federal law that limited the annual number of immigrants who could be admitted from any country to 2% of the number of people from that country who were already living in the United States in 1890.
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October 24, 1929, the start of the Wall Street Crash of 1929 at the New York Stock Exchange. "Black Tuesday" was the following week on October 29, 1929
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The Wall Street Crash of 1929 (October 1929), aka the Great Crash, and the Stock Market Crash of 1929, was the most devastating stock market crash in the history of the United States, taking into consideration the full extent and duration of its fallout. The crash signaled the beginning of the 10-year Great Depression that affected all Western industrialized countries and did not end in the United States until 1947.
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He was elected on November 8, 1932, November 3,1936, November 5, 1940 and
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The Economy Act of 1933, officially titled the Act of March 20, 1933 - is an Act of Congress that cut the salaries of federal workers and reduced benefit payments to veterans, moves intended to reduce the federal deficit in the United States.[1]
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The Twenty-first Amendment (Amendment XXI) to the United States Constitution repealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition on alcohol on January 17, 1920.
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An electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Compare analog computer, digital computer.
Konrad Zuse - Z1 Computer First freely programmable computer. -
In 1936, harnessing the power of the mighty Colorado River, Hoover Dam begins sending electricity over transmission lines spanning 266 miles of mountains and deserts to run the lights, radios, and stoves of Los Angeles.
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On June 22, 1944, the Servicemen's Readjustment Act of 1944 became law; it was commonly known as the G.I. Bill of Rights.
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A global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
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The Frisbee was invented in 1957 by a Californian UFO enthusiast named Walter Frederick. But he didn’t call it a Frisbee. The Wham-O company bought his idea for a toy saucer, and later named it after a popular pie restaurant in Bridgeport, Connecticut. William Frisbie’s pies were very popular with kids who liked to throw the tins around after they ate the pie! Hence, the Frisbee!