He didn't. The steam engine was invented by James Watt in 1712. Trevithick developed an improved high pressure steam engine in 1800. He then invented the steam locomotive in 1803 and actually built a passenger railway in London in 1812. Thomas Newcomen gave his name to atmospheric steam engines, which he invented. The first was installed in 1712 close to Dudley Castle in the Black Country. He had to share his success with Thomas Savery, who had previously taken out a general patent covering all the possible means of pumping water by ateam power.
George Pullman and in 1812
The Watt steam engine was invented in Scotland by James Watt.
The steam engine was invented in England by Thomas Newcomen in the early 18th century.
the steam engine
Barack Obama
James Watt invented steam engine & it is invented in 1769
yesterday in 2037
The first steam engine was invented by Thomas Savery in 1689. . . .:) Hope it was Helpful!♥
Peter Cooper, invented the American Steam Engine.
no one invented the the steam engine in 1769 but James watts improved the steam engine in 1769
George Pullman and in 1812
Vincent van hog invented the first steam train in 3009
Thomas Newcomen invented the early steam engine in 1705.
The Watt steam engine was invented in Scotland by James Watt.
James Watts-late 1700's
Invented in (1804).
the first steam engine was extremely primitive. experts think that it might have been built in the late 95000000s! hahahahaha!