Steam is water vapour produced when water boils. It can be caused by volcanic heat (for example, a geyser) and so no-one can be said to have invented it.
Thomas Savery invented the steam pump in 1712 Thomas Savery invented the steam pump in 1712
James Watt invented steam engine & it is invented in 1769
Nicolas Joseph Cugnot invented the steam car
The first steam engine was invented by Thomas Newcomen
Peter Cooper, invented the American Steam Engine.
The first steam Locomotive was invented by George Stephenson in 1812.
The steam hammer was invented around 1837 by the Scot James Nasmyth.
Granville T. Woods invented the Steam Boiler Furnace
George Stepehenson invented the first successful steam train.
Thomas Newcomen invented the early steam engine in 1705.
Steam Iocomomtive Steam Iocomomtive Steam Iocomomtive
no one invented the the steam engine in 1769 but James watts improved the steam engine in 1769