From a Vault in Paris, Sounds of Opera 1907

"On Dec. 24, 1907, a group of bewhiskered men gathered in the bowels of the Paris Opera to begin a project that by definition they could never see to fruition. First, 24 carefully wrapped wax records were placed inside two lead and iron containers. These were then sealed and locked in a small storage room with instructions that they should remain undisturbed for 100 years."

For the full article, please see the New York Times.