Edison Invents the Phonograph
In his Menlo Park, New Jersey laboratory, inventor Thomas Edison had been experimenting with telegraphy and telephony when he conceived a device to record and reproduce sound. Building on his work with embossing recorders, Edison sketched and constructed a prototype using a tinfoil-wrapped cylinder, a stylus, and a speaking tube. On August 12, 1877, he successfully recorded and played back his own voice reciting "Mary Had a Little Lamb," demonstrating the first practical sound recording technology. The invention astonished colleagues and marked a pivotal moment in audio technology development.
