Answer:
Robert Fulton built a workable commercial steamboat
Step-by-step explanation:
Robert Fulton (November 14, 1765 – February 24, 1815) was an American engineer and inventor who is widely credited with developing the world's first commercially successful steamboat, the North River Steamboat (also known as Clermont). In 1807, that steamboat traveled on the Hudson River with passengers from New York City to Albany and back again, a round trip of 300 miles (480 km), in 62 hours. The success of his steamboat changed river traffic and trade on major American rivers.