The steamboat does not have a single, exact “birthday,” but key milestones let us answer this clearly and briefly:

  • The idea and early patents for a steam‑powered boat appeared as early as 1729 (John Allen in England), with another patent in 1736 by Jonathan Hulls for a steam‑powered tow boat.
  • One of the first practical demonstrations of a steam-powered vessel was the French paddle steamer Pyroscaphe , tested on the Saône River in 1783.
  • In the United States, John Fitch successfully ran a working steamboat on the Delaware River in 1787 , demonstrating that steam power could propel a boat.
  • The first commercially successful steamboat —the one most people associate with “the invention of the steamboat”—was Robert Fulton’s North River Steamboat (often called Clermont) , which began regular passenger service on the Hudson River in 1807.

So, if you need one simple answer for “when was the steamboat invented,” most histories point to 1807 , when Fulton’s Clermont started successful commercial service, though experimental steamboats existed from the 1720s–1780s and a working American steamboat ran in 1787.