It doesn't look like it's almost 150 years old. On April 8, 1878, the Cincinnati Music Hall informally opened for 300 invited guests, with a grander opening happening a few weeks later ...

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Thomas Edison took this idea and ran with it, and in 1878 created a way to actually hear those sounds. Edison's invention used a stylus to cut grooves into tinfoil to record and replay sound. The tin ...