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Thomas Alva Edison was born on 11 February 1847 in Milan, Ohio. He was the youngest of seven children and frequently fell ill during childhood. Unable to succeed in school, Edison was educated at home by his mother, Nancy Elliott. From an early age, he showed a strong interest in physics and chemistry experiments. Youth and Early Experiments At the age of ten, he built a small chemistry laboratory in the basement of his home. After learning Morse code, he constructed his own telegraph. At twelve