This Day, That Year – September 20

Khabib Nurmagomedov is a Russian retired professional mixed martial artist born on this day in 1988.

Did you know that:

• George Simpson patented an electric range on this day in 1859
• A patent was granted for “synthetic fiber” (nylon) to Wallace Carothers on this day in 1938
• The Cryptographic Communications System & Method (RSA) was patented on this day in 1983