3: 1875: Alexander Graham Bell and Thomas A. Watson transmit speech sounds electrically by wire for the first time.

11: 1915: Birth date of Nicholas Constantine Metropolis, developer of MANIAC [left], a computer used to develop the hydrogen bomb.

19: 1623: Birth date of Blaise Pascal, a philosopher and mathematician who invented the first mechanical calculator, known as the Pascaline.

26: 1824: Birth date of William Thomson (later Lord Kelvin), developer of the Kelvin scale of absolute temperature.

27–2 July: IEEE Meeting Series in Boston.

4: 1861: Western Union begins construction of a telegraph line between Missouri and California—the final piece of the first coast-to-coast, high-speed communications link in the United States.

7: 1752: Birth date of Joseph-Marie Jacquard, inventor of the Jacquard loom [left], still used in the textile industry.

12: 2001: First appearance of Code Red, a Web worm that infects Microsoft Internet Information Servers. A week later, it infiltrates hundreds of thousands of servers, causing billions of U.S. dollars in damage.

18: 1968: IEEE Life Fellow Gordon Moore and Robert N. Noyce establish Intel Corp., in Mountain View, Calif.

25: 1857: Birth date of Frank Julian Sprague, developer of the first successful electric streetcar system, operated in Richmond, Va.

31: 1909: Birth date of physicist Jenny Rosenthal Bramley, who in 1966 became the second woman to be named an IEEE Fellow.

6: 1926: Don Juan, the first feature-length movie with synchronized sound, premieres at the Warner Theater in New York City.

12: 1960: Echo-1, the first telecommunications satellite, is launched.

18: Region 1 meeting in Newark, N.J.

20: 1911: The New York Times sends the first around-the-world telegram. The message made the 45 000-kilometer trip in about 16 minutes.

28: 1863: Birth date of André-Eugène Blondel, inventor of the electromagnetic oscillograph, an instrument used to record alternating-current waveforms.

29: 1876: Birth date of Charles Franklin Kettering, AIEE Fellow and inventor of the electric cash register and an electric starter for automobiles.

Photo: Top: NASA; Middle: iStockphoto; Bottom: White House Press Office