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In 1883, he developed a thermostat, which he deployed at the State Normal School. He called the instrument an "electric tele-thermoscope" in the patent application. It was a bi-metal coiled thermostat with a mercury switch, which could be used to ring a bell to alert the fireman to open or close the heating damper.
The Baltimore Polytechnic Institute, colloquially referred to as BPI, Poly, and The Institute, is a US public high school founded in 1883. Established as an all-male manual trade / vocational high school by the Baltimore City Council and the Baltimore City Public Schools, it is now a coeducational academic institution since 1974, that emphasizes sciences, technology, engineering, and ...
November 18, 1883 - The American Railway Association instituted standard time in the U.S. at noon; adopted from system first proposed by Charles F. Dowd, a school principal in New York state; North America was divided into four time zones, fifteen degrees of longitude, one hour of "standard time" apart; Sir Stanford Fleming proposed extension ...
Founded in 1842, it still did not have a school, but Edward G. Hammond, [2] a cabinetmaker, and his 17-year-old son Ted were paid $600 to construct a schoolhouse up to the eighth grade. [ 1 ] [ 3 ] The school was originally successful, but it eventually fell into a state of neglect as other, larger schools, started propping up in the town.
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All plans are eligible for the Paramount Plus free trial 30-day promo code. You can opt for the Paramount Plus Essential plan with ads for $5.99/month or $59.99/year; ...
Josiah Henson (June 15, 1789 – May 5, 1883) was an author, abolitionist, and minister.Born into slavery, in Port Tobacco, Charles County, Maryland, he escaped to Upper Canada (now Ontario) in 1830, and founded a settlement and laborer's school for other fugitive slaves at Dawn, near Dresden, in Kent County, Upper Canada, of Ontario.