Listed below are the steam railroads which were the predecessors of todays' New York City Subway B1 division (BMT). Brighton Line - Originally the Brooklyn, Flatbush and Coney Island Railroad. Opened in 1878 from the Brighton Hotel to Atlantic Avenue and Franklin Avenue connecting with the Long Island Railroad. In 1887 it became the Brooklyn and Brighton Beach Railway Company. It merged with the Brooklyn Union Elevated Railroad Company (part of the Brooklyn Rapid Transit Company) in 1900. Now covered by D and Q trains (6th Av) from Prospect Park to Coney Island Canarsie Line - Originally the Brooklyn, Canarsie and Rockaway Beach. Opened in 1865 from Atlantic Avenue and Fulton Street to the Canarsie shore and from there by ferry to Rockway Beach. It became the Canarsie Railroad, was electrified and leased the the Brooklyn Union Elevated in 1906. It became part of the New York Consolidated Railroad (also BRT) in 1912. In the early 1920's the line was cut back to the Rockaway Parkway station and a trolley service (with free transfer) was inaugurated. This service still exists but with buses using a unique entrance/exit gate system which allows the buses to go right up to the platform which is at street level. Now covered by the L (14th St) Culver Line - Originally the Prospect Park and Coney Island Railroad. Opened in 1875 from the Culver Depot in Coney Island to 9th Avenue & 20th Street. It was named after Andrew Culver (the founder). It was purchased by the LIRR in 1892 and leased to the BRT in 1893. It became part of the BRT in 1909. Now covered from Ditmas Av to Coney Island by the F (6th Av) Sea Beach Line - Originally the New York and Sea Beach Railroad. Opened in 1879 from the ferry at 61st Street and 1st Avenue (Brooklyn) to the Sea Beach Palace Hotel in Coney Island. It became the Sea Beach Railway Company (part of the BRT) and in 1912 merged with the Brooklyn Union Elevated Railroad (also part of the BRT) and the Canarsie Railroad (again part of the BRT) and the New York Cosolidated Rairoad was formed (BRT). Now covered by the N (Broadway) West End Line - Originally the Brooklyn, Bath and Coney Island Railroad. Opened in 1864 as a horsecar line and converted to steam. The original route was from 25th Street and Fifth Avenue (Brooklyn) to an amusement park in the West End of Coney Island and was called the West End Line. In 1885 it was renamed the Brooklyn, Bath and West End Railroad. It became part of the Nassau Electric system in 1898 and in 1899 part of the BRT. This line ran at ground level until 1917 when it was elevated. Now covered by the B (6th Av) and M (Nassau St)