500
Two part question: (a) One of the reasons for the boom in industry during the Gilded Age was invention. Name two new inventions of this era. (b) Which American was so famous for his inventions that he earned the nickname the “Wizard of Menlo Park”?
(a) Electric light bulbs, phonograph, audio recorder, cash registers, typewriters, telephone, Bessemer process to make steel, assembly lines, the first airplane, first car; (b) Thomas Edison