Environmental science timeline

By jackkoczan22

  • Electricity was discovered

    Ben Franklin discovered electricity with a kite and a key

  • James Watt improved the Steam engine

  • New York Stock Exchange was founded

  • Cotton gin was patented

    Eli Whitney patented the cotton gin in 1793. From 1793 until the Civil War the slave population increased to about 4,000,000.

  • First commercial telegraphy system was patented

    In 1837, British inventors William Cooke and Charles Wheatstone patented the first commercial telegraphy system, even as Samuel Morse and other inventors worked on their own versions in the United States.

  • Transcontinental railroad opened for traffic

    North America's first transcontinental railroad was a 1,911-mile continuous railroad line constructed between 1863 and 1869 that connected

  • First car was invented

    Carl Benz applied for a patent for his “vehicle powered by a gas engine.”