The interborough Rapid Transit Company was the first company to build the subway in New York City. The original line from City Hall in Downtown Manhattan to 145th Street opened on October 27th, 1904. The extension of the line past 145th street was always part of the original 1898 plan, including the section of the line from Dyckman Street into the Bronx, but ultimately changes occurred to make the terminus of the line 242nd Street-Van Cortlandt Park. The 207th Street Station was completed in 1906 but did not open until April 1, 1907. In 1907 the platform was originally built for a six-car train configuration, in 1948 platform extension work allowed for the current ten car operations we know today.