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.
There is some dispute as to who actually added wheels to the equation and created a rolling coaster. Robert Cartmell, who wrote the book The Incredible Scream Machine: A History of the Roller Coaster, gives the Russians credit for building the first wheeled machine. He states that it was in the Gardens of Orienbaum in St. Petersburg.