Question

before invention of steam engine, electricity and oil were major power sources,. state true or false​

Answer 1

Answer:

21 February 1804

On 21 February 1804, at the Penydarren ironworks at Merthyr Tydfil in South Wales, the first self-propelled railway steam engine or steam locomotive, built by Richard Trevithick, was demonstrated.

Answer 2

Answer:

false is answer of questions