I was taking it 50 mg every six hours. But what has happened? I have missed the dose and I took two at once. I know that I should not do that and I don't know what I was thinking about while taking it but it has happened. I am afraid of overdose. How much of diphenhydramine is an overdose?
Quick Answer. The train was first invented and patented in 1784, by James Watt. The first working model to be made and successfully run was created in 1804 by Richard Trevithick. Continue Reading.
George Stephenson - Inventor of Steam Locomotive Engine for Railways. Even though many inventors worked their entire lives on building trains, engines, infrastructure and technical support, the first man who managed to popularize trains in public fashion was Englishman George Stephenson.