The U.S. patent for MP3 audio was granted on this day in 1996 — laying the foundations for peer-to-peer music sharing, iTunes, and today’s streaming services

On this day in 1996, a freshly inked U.S. patent quietly laid the cornerstone of the digital music revolution. In addition to facilitating this now vast internet-based entertainment business, the humble MP3 file format would propel broadband proliferation, usher in the iPod era, and arguably precipitate the iPhone and all the other touchscreen-slabs that remain indispensable gadgets to this day.

MPEG Audio Layer III (MP3) files were devised by scientists to greatly reduce the amount of data required to…