The Army Corps of Engineers was established on March 16th, 1802, to operate the military academy at West Point.
On this date in 1916, General John J. Pershing (West Point class of 1886) led the horsemen of the Cavalry across the Mexican border to search for revolutionary Pancho Villa.
Most people gave up horses for cars in the early 20th century. On March 16th, 1958, Ford produced its 50 millionth car, a Thunderbird. Exactly 10 years later on the same date, General Motors made its 100 millionth auto. It was an Olds Toronado.