“For some reason, the two block length of Camac Street running from Walnut to Spruce was developed by about 1800, much earlier than the surrounding blocks. About 1813, the street appears in directories as Hazel Alley, then a bit later as Dean’s Alley and by the end of that decade as Dean Street. It would remain Dean Street for most of the 19th century, until about 1898, when the hodge podge of street names in Philadelphia were regularized.”

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