The New York and Harlem Railroad (now the Metro-North Railroad Harlem Line) is one of the first railroads in the United States, and possibly also the world's first street railway.
Designed by John Stephenson, it is opened in stages between 1832 and 1852 between Lower Manhattan to and beyond Harlem.
Initially using horses, the line is partially converted to use steam engines and then electricity, using a Julien electric traction car.
In 1907, the leaseholders of line, New York City Railway, go into receivership.
Following a further receivership in 1932, the New York Railways Corporation converts the line to bus operation.
The Murray Hill Tunnel now carries a lane of road traffic, but not the buses.The line becomes part of the New York Central Railroad system with trackage rights granted to the New York, New Haven and Hartford Railroad into Manhattan.
It is now part of the Metro-North Railroad system, and the only Manhattan trackage of that system.
