Four years later, on Oct. 27, 1904, the New York City subway opened to the public. "That first line was parts of what is the 4/5/6 of today and the 1/2/3 of today.

A new New York City subway map has been unveiled by the MTA. A lot has changed on the subway in the last 45 years, including stations, train cars, platforms, and even how we pay.