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In page Broadway (Manhattan):

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In the 18th century, Broadway ended at the town commons north of Wall Street. The part of Broadway in what is now Lower Manhattan was initially known as Great George Street.[1] Traffic continued up the East Side of the island via Eastern Post Road and the West Side via Bloomingdale Road, which opened in 1703, continued up to 117th Street and contributed to the development of the modern Upper West Side into an upscale area with mansions.[citation needed]