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Whiteboards became commercially available in the early 1960s, but did not become widely used until 30 years later. Early whiteboards needed to be wiped with a damp cloth and markers had a tendency to leave marks behind, even after the board was erased. [2] [3] In 1974, whiteboards were proposed as additional equipment for Soviet schools. [4]
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 ...
A blackboard can simply be a board painted with a dark matte paint (usually black, occasionally dark green). [1] Matte black plastic sign material (known as closed-cell PVC foamboard) is also used to create custom chalkboard art. [2] Blackboards on an A-frame are used by restaurants and bars to advertise daily specials. [3]
African-American art is known as a broad term describing visual art created by African Americans. The range of art they have created, and are continuing to create, over more than two centuries is as varied as the artists themselves. [ 1 ]
Jeff Donaldson (1932 – 2004) was a visual artist whose work helped define the Black Arts Movement of the 1960s and 1970s. [1] Donaldson, co-founder of AfriCOBRA and contributor to the momentous Wall of Respect, was a pioneer in African-American personal and academic achievement.
The Black Arts Movement (BAM) was an African-American-led art movement that was active during the 1960s and 1970s. [3] Through activism and art, BAM created new cultural institutions and conveyed a message of black pride. [4] The movement expanded from the accomplishments of artists of the Harlem Renaissance.
Invented chair with sliding skin (2004) and the quantitative display apparatus (2005) [23] [24] [25] Benjamin, Miriam: 1861–1947 Inventor, educator Invented "Gong and Signal Chair for Hotels"; second African-American woman to receive a patent [26] Berry, Leonidas: 1902–1995 Gastroenterologist: Gastroscope pioneer [27] Bharucha-Reid, Albert ...
AfriCOBRA was founded on the South Side of Chicago by a group of artists intent on defining a "black aesthetic." AfriCOBRA artists were associated with the Black Arts Movement in America, a movement that began in the mid-1960s and that celebrated culturally-specific expressions of the contemporary Black community in the realms of literature, theater, dance and the visual arts. [6]