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Day in History Archive - March 29

March 29

PTO Renamed USPTO, March 29, 2000 - RF CafeDay in Engineering History March 29 Archive - RF Cafe1848: Niagara Falls stopped flowing for one day due to an ice jam. 1853: Elihu Thomson, electrical engineer and inventor whose discoveries in the field of alternating current led to the development of successful alternating current motors, was born. 1886: Dr. John Pemberton brewed the first batch of Coca Cola. 1906: Hermann Schwarz, of the Rohde & Schwarz test equipment company, was born. 1927: For the first time an automobile, the "Mystery Sunbeam," exceeded 200 mph. 1932: Jack Benny debuted on radio. 1973: The U.S. withdrew from Vietnam. 1974: Mariner 10 took the first close-up pictures of Mercury. 1984: The Baltimore Colts moved to Indianapolis under the cover of darkness. 1999: The Dow Jones Industrial Average (DJIA) closed above 10,000 for the first time. 2000: The Patent and Trademark Office became the United States Patent and Trademark Office.

| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |

Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified. Many years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred. Images used in the logos are often from open source websites like Wikipedia, and are specifically credited with a hyperlink back to the source where possible. Fair Use laws permit small samples of copyrighted content.

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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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