Avenues Line, also known as the Second Avenue Line, is a bus route in Manhattan, NewYorkCity, running mostly along Second Avenue (and northbound on First
1886. When NewYork Railways began abandoning several streetcar lines in 1919, the replacement bus routes (including the current M21 and M22 routes) were
later extended to Harlem. Buses were substituted for streetcars by the Madison Avenue Coach Company in March 1936. The NewYorkCity Omnibus Corporation took
service from southern Brooklyn to Manhattan launches on choppy seas". NewYork Daily News. Retrieved March 12, 2023. "Bronx Bus Map" (PDF). Metropolitan