Elon Musk... take note
"The Meigs Elevated Railway was an experimental but unsuccessful 19th century elevated steam-powered urban rapid transit system, often described as a monorail but technically pre-electric third rail. It was invented in the US by Josiah Vincent Meigs (also known as Joe Meigs or Joe Vincent Meigs), of Lowell, Massachusetts, and was demonstrated in a suburb of Boston called East Cambridge from 1886 to 1894."
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