4: 1931: Hans Hermann Knoll and Ernst Ruska demonstrate the first electron microscope.
7: 1900: Birth date of Frederick Emmons Terman, 1941 IRE president, considered one of the founders of Silicon Valley.
9: 1891: Thomas A. Edison receives a patent for his improved wax-cylinder phonograph.
10: 1700: Birth date of Ewald Jürgen von Kleist, inventor of a device used to store electric energy, later called the Leyden jar.
13: 1934: Birth date of IEEE Fellow Leonard Kleinrock, developer of the underlying principles of packet switching.
18: Annual IEEE Candidates Night Q&A in Philadelphia.
19: 1902: Birth date of Wallace John Eckert, pioneer of the use of computers in astronomy.
21: 1781: Birth date of Siméon Denis Poisson, originator of mathematical theories of electrostatics and magnetism.
23: 23–28 June: IEEE Board of Directors Meeting Series in Los Angeles.
25: IEEE Honors Ceremony in Los Angeles.
30: 1948: Bell Labs announces invention of the transistor.
2: 1974: IRE cofounder Alfred Norton Goldsmith dies in St. Petersburg, Fla.
7: 1916: Thomas A. Edison becomes head of the Naval Consulting Board, which advises the U.S. Navy on new scientific inventions.
11: 1979: Skylab, the first U.S. space station, disintegrates upon reentry, scattering debris over the Indian Ocean and Australia.
13: 1977: A power blackout in New York City lasts nearly 25 hours, affecting millions of people.
15: 1965: NASA’s unmanned spacecraft Mariner 4 captures the first close-up images of Mars.
16: 16–19 July: IEEE 125th anniversary celebration and Region 10 Student Congress in Singapore.
18: 1968: Gordon Moore [right] and Robert Noyce [center] (shown with early employee Andy Grove, later CEO) found Intel Corp.
20: 1937: Radio pioneer Guglielmo Marconi dies in Rome.
21: 1970: Completion of the Aswan High Dam, whose hydroelectricity will supply half of Egypt’s power needs.
26: 26-30 July: IEEE Power & Energy Society celebrates its and IEEE’s 125th anniversary in Calgary, Alta., Canada.
29: 1947: ENIAC, one of the first digital computers, is rebooted after receiving a memory upgrade.
2: 1922: Alexander Graham Bell dies in Nova Scotia, Canada.
9: 1892: Thomas A. Edison receives a patent for the two-way telegraph in the United States.
10: 1885: First commercial electric streetcar in the United States goes into service in Baltimore.
12: 1981: IBM announces commercial 16-bit personal computer.
14: 1959: The Explorer 6 satellite conducts the first telecast of Earth from space.
17: 1937: First test flight of airborne radar by the British Air Force.
19: 1906: Birth date of television pioneer Philo T. Farnsworth.
26: 1895: The Adams Hydroelectric Generating Plant, in Niagara Falls, N.Y., begins operating.
27: 1910: The first radio broadcast sent from an airplane in flight is transmitted over Sheepshead Bay, N.Y.
29: IEEE 125th anniversary celebration in Bangalore, India.
IEEE events indicated in RED.