Thomas Alva Edison:
He was an American inventor and businessman.
He developed many devices: the phonograph, the motion picture camera and the electrical light bulb.
He was born in 1847.
He died in 1931.
He was an American inventor and businessman.
He developed many devices: the phonograph, the motion picture camera and the electrical light bulb.
He was born in 1847.
He died in 1931.
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