1. 1901: First electric typewriter, the Blickensderfer.
1907: A photocopier is marketed.
1912: U.S. passes Radio Act to control radio broadcasts; licenses are easy to get.
1915: Wireless radio service connects U.S. and Japan.
1917: U.S. enters WW I; amateur radio transmitters shut down; Navy controls radio.
1919:The New York Daily News is published.
1922: 100,000 radio sets manufactured in U.S.
1922: A commercial is broadcast. U.S. radio will be built on “toll broadcasting..
1930: Published photos show Americans the hard times of the Depression.
1934: Mutual Broadcasting System becomes fourth U.S. radio network.
1935: U.S. radio stations win “Press-Radio War” started by newspapers.
1946: After WW II freeze, U.S. radio manufacturers turn out 15 million sets this year.
1954: Regular color TV broadcasts begin in U.S. using NTSC standard.
1954: Radio sets in the world now outnumber daily newspapers.
1960: 90% of American homes have television sets.
1970: National Public Radio (NPR).
1970: AP sends news by computer.
1980: New York Times, Wall Street Journal, Dow Jones put news database online.
1980: CNN, 24-hour news channel, begins reports.
1990: Entertainment Weekly magazine.
1990: On cable: CNBC
1992: Number of newspapers offering online news rises to 150.
1992: Digital AM radio broadcasting is tested.
1993: Nokia sends text messages between mobile phones.
1994: Radio stations open World Wide Web locations.
1995: ABC, CBS sold. New networks: WB and UPN.
1996: Digital Associated Press cameras send Super Bowl pix to newspapers in minutes.
1998: 3,250 newspapers, 1,280 TV stations now have online websites.