On the 10th March 1876, Scottish-born inventor Alexander Graham Bell made the first successful telephone call when he contacted his assistant, Thomas Watson.

80 red, white, and blue walnut-sized glass light bulbs were hand-wired and placed around a large Christmas tree in the home of Edward H. Johnson’s New York home on Fifth Avenue.

Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.