Week 4 of the NFL schedule features an intriguing Sunday Night Football matchup when Micah Parsons and the Green Bay Packers (2-1) battle the Dallas Cowboys (1-2). Dallas traded Parsons to Green Bay a ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. Sewing Machine Patent Model. Patent No. 4,750, issued September 10, 1846. Elias Howe Jr. of Cambridge, Massachusetts.

The first portable X-ray machine that saw service on a battlefield was made by Harry W. Cox & Co., Ltd, and used by the British Red Cross during the Balkan Wars of 1912. Dr. John Hunter Selby bought ...