Lesson plan
Graphophone
The Graphophone was the name and trademark of an improved version of the phonograph. It was initially designed at the Volta Laboratory established by Alexander Graham Bell in Washington, D.C., United States. It was co-invented by Alexander Graham Bell, Charles Sumner Tainter, and Chichester Bell in 1886. Its trademark usage was acquired successively by the Volta Graphophone Company, the American Graphophone Company, the North American Phonograph Company, and finally by the Columbia Phonograh Company (known today as Columbia Records), all of which either produced or sold Graphophones.
Article summary
The Graphophone was the name and trademark of an improved version of the phonograph. It was initially designed at the Volta Laboratory established by Alexander Graham Bell in Washington, D.C., United States. It was co-invented by Alexander Graham Bell, Charles Sumner Tainter, and Chichester Bell in 1886. Its trademark usage was acquired successively by the Volta Graphophone Company, the American Graphophone Company, the North American Phonograph Company, and finally by the Columbia Phonograh Company (known today as Columbia Records), all of which either produced or sold Graphophones.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.