2: 1883: The first U.S. electric elevated train makes its inaugural journey in Chicago.
8: 1832: Birth date of Sir Charles Tilston Bright, the telegraph engineer in charge of laying the first transatlantic cable.

Photo: American Stock/Getty Images
9: 1891: Thomas Edison is issued a patent for a phonograph improvement.
16: 1949: The first gas turbine-electric locomotive is demonstrated in Erie, Pa.
21: 1781: Birth date of Siméon Denis Poisson, who came up with one of the first mathematical theories of electrostatics and magnetism.

Image: Science Photo Library/Photo Researchers
22-27: IEEE Meeting Series in Bellevue, Wash.
30: 1948: Bell Telephone Labs announces the invention of the transistor.
July
Photo: NASA
4: 1968: Explorer 38, an unmanned U.S. spacecraft, is launched to measure galactic radio sources and study low frequencies in space.
10: 1962: Telstar 1, the first active communications satellite, is launched.
Photo: Daily News/Getty Images13: 1977: A New York City-area blackout lasting nearly 25 hours affects millions of residents and leads to more than US $100 million in estimated losses from looting.
17: 1850: The Harvard Observatory takes the first photograph of a star.
Photo: AFP/Getty Images21: 1970: The Aswan High Dam in Egypt is completed.
31: 1964: Ranger 7, an 8-foot-high unmanned spacecraft carrying 6 TV cameras, transmits more than 4000 pictures of the Moon before, as planned, crashing into its surface.
3: 1926: The first traffic lights in Great Britain are installed at Piccadilly Circus in London.
4: 1922: Two days after Alexander Graham Bell's death, all phones in the United States and Canada served by the Bell System go dead for one minute in his honor.
10: 1885: The United States' first commercial electric streetcar goes into service in Baltimore.
Photo: Getty Images15: 1998: Apple begins shipping its iMac personal computer.
19-22: IEEE Sections Congress in San Francisco.
20: IEEE Honors Ceremony at Sections Congress in San Francisco.
Photo: iStockphoto21: 1883: Installation of the first electric lighting on a U.S. Navy ship is completed on the USS Trenton.
28: 1964: First weather satellite to transmit nighttime cloud photos is launched.
Historical events provided by the IEEE History Center.
IEEE events indicated in RED.

