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John Ruiz

John RuizBorn: Jan. 4, 1972Boxer defeated Evander Holyfield by decision in 2001 for the WBA heavyweight title; the first-ever Hispanic heavyweight champ; lost belt to Roy Jones Jr. on…

John Bardeen

John BardeenBorn: 1908Birthplace: Madison, Wisconsin Transistor—Bardeen, Shockley and Brattain shared the 1956 Nobel Prize for Physics for the invention of the transistor. The transistor replaced…

John Deere

John DeereBorn: 1804Birthplace: Rutland, Vt. Plow—Deere's plow had a cutting part made of steel and a moldboard made of polished wrought iron which proved more effective than implements then…

John Ericsson

John Ericsson Born: 1803Birthplace: Vermland, Sweden Propeller—Ericsson's propeller—still the main form of marine propulsion 150 years later—replaced the inefficient and vulnerable steam-…

John Gibbon

John GibbonBorn: 1903 Heart-Lung Machine. Gibbon's development of the heart-lung machine made possible the first successful open-heart operation in 1953. Improved versions allow surgeons…

John Roebling

John RoeblingBorn: 1806 Suspension Bridge. The age of the suspension bridge was ushered in by engineer and inventor Roebling. Roebling saw the potential of steel wire as a bridge building…

John Mauchly

John Mauchly Born: 1907Birthplace: Cincinnati, Ohio ENIAC data translating device—Engineers Eckert and Mauchly invented ENIAC (Electronic Numerical Integrator and Calculator), the first…

John Thomas

John Thomas Born: 1907 Birthplace: East St. Louis, Illinois Fiberglass—In the 1930s, John Thomas, Games Slayter, and Dale Kleist developed the…

John Campbell

John CampbellBorn: Apr. 8, 1955Harness racing 5-time winner of Hambletonian (1987,88,90,95,98); 3-time Driver of Year; first driver to go over $100 million in career winnings.Earl CampbellA…

John Davis

John DavisBorn: Jan. 12, 1921Weightlifting 6-time world champion; 2-time Olympic super-heavyweight champ (1948,52); undefeated from 1938-53.Died: July 13, 1984Glenn DavisD - FTerrell Davis…