10 Key Historical Moments in the US: Energy Use By Nyla Ruiz Jun 1, 1695 First steam engine was built Period: Jun 1, 1700 to Jan 1, 2000 1700-2000 Jan 1, 1809 First electric light was built Jan 1, 1821 First electric motor was created Jan 1, 1824 Heat engines Jan 1, 1835 The telegraph was created Jan 7, 1880 The first electric lamp was created Sep 28, 1886 First automobile was invented Sep 28, 1936 The hoover dam opened to the public Sep 28, 1937 Nuclear fission was discovered Sep 28, 1954 Production of solar panels began
