Steam-driven vehicle is demonstrated by Sylvester Roper.

July 31, 1863

(July) (1862) The Roxbury resident demonstrates what some consider to be the first automobile in the U.S., a steam-driven carriage capable of traveling at 25 miles per hour. He subsequently builds a velocipedes, a steam-powered bicycle, capable of reaching 40 miles per hour, which he is killed while demonstrating in 1896.*