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A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
Anthology Inc. Company type Privately held Industry Educational technology Founded January 21, 1997 ; 28 years ago (1997-01-21) Washington, D.C., U.S. Founders Stephen Gilfus Daniel Cane Michael Chasen Matthew Pittinsky Headquarters Reston, VA, U.S. Number of locations 18 Area served Worldwide Services Platform and enterprise consulting, managed hosting, student and training services, online ...
William Brownie Garden (December 2, 1869 – 1960) was a Scottish inventor and entrepreneur. He is probably best known for his invention of the "revolving blackboard". Up until his death at age 90, in 1960, the ‘Inventor’ still worked at his own bench in the factory, from which came innovations like an improved saw which cut ten times quicker than any other, and an eight-wheeled car for ...
1801: James Pillans, headmaster and geography teacher at the Old High School in Edinburgh, Scotland, is credited with inventing the first modern blackboard. [1]1925: George Brooks of Topeka, Kansas is issued a patent for the use of corkboard as a bulletin board which you could stick tacks into. [2]
Blackboard Learn (previously the Blackboard Learning Management System) is a web-based virtual learning environment and learning management system developed by Blackboard Inc. The software features course management, customizable open architecture , and scalable design that allows integration with student information systems and authentication ...
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