Why is Robert famous?

Answer 1

for creating the steam boat and submarine

Even before the steam engine had success on rails, steam-powered ships were a reality. Various inventors had built working steam-powered boats as far back as 1783. In 1800, American inventor Robert Fulton built the Nautilus, the first functioning submarine. In 1803, he piloted a steam-powered ship up the river Seine in Paris. In 1807, a steamboat of Fulton's ran commercial passenger service on the Hudson River between Albany and New York City.

Fulton quickly secured a monopoly on steamboats on the Hudson and ran a profitable business. His monopoly was eventually declared a violation of interstate trade. Fulton could not compete with other steamboats, and he went out of business. Fulton was a successful self-promoter and a capable engineer who improved and adapted the inventions of others. In the U.S., Robert Fulton is sometimes claimed to be the inventor of the steamboat, but that is not strictly true. Many inventors designed steamboats prior to and independently of Robert Fulton.