Nobody else coming to this site to ask this question has had an answer yet. Like you (and them) nobody else has a chance of answering such a vague question. Keep guessing!
Fred Flintstone, James Hargreaves & the 'spinning Jenny', Richard Trevithick's locomotive. Charles Babage, Bill Gates. James Watt, steam engine. Henry Ford, Mr Benz, Mr Diesel etc. Alan Sugar, Clive Sinclair.