
wysr.xyz
July 5, 2026
28 min read
49/100
Summary
On January 24, 1956, American Telephone and Telegraph Company was the largest private company globally, generating nearly 2% of the U.S. GDP and employing 746,000 people. The company owned Bell Labs, which developed significant technologies including the transistor, solar cell, information theory, and radio astronomy, and was involved in laying the first transatlantic telephone cable.
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