{"items": [{"author": "Peter", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196743633737694", "anchor": "fb-196743633737694", "service": "fb", "text": "I vaguely remember that cities were built at the fall line to capitalize on the water power.", "timestamp": "1321656004"}, {"author": "Miles", "source_link": "https://plus.google.com/112411876916401693118", "anchor": "gp-1321656686467", "service": "gp", "text": "Just threw up a version with a map overlay. Seems to work nicely: \nhttps://plus.google.com/photos/112411876916401693118/albums/5676472044421335601\n  . Looks like Philadelphia is right on the line, as is DC. The real exception might be Atlanta.", "timestamp": 1321656686}, {"author": "Don", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196763717069019", "anchor": "fb-196763717069019", "service": "fb", "text": "Yeah that sounds like what I learned too except Atlanta which was the first big city built b'cos of railroads!", "timestamp": "1321659020"}, {"author": "Paul", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196765253735532", "anchor": "fb-196765253735532", "service": "fb", "text": "The were also sometimes built in well-defended locations.", "timestamp": "1321659287"}, {"author": "Jeff Kaufman", "source_link": "https://plus.google.com/103013777355236494008", "anchor": "gp-1321660244915", "service": "gp", "text": "The overlay is great!  As for atlanta, \"Atlanta began as a settlement located at the intersection of two railroad lines, and it was incorporated in 1845\" -- \nhttp://en.wikipedia.org/wiki/Atlanta", "timestamp": 1321660244}, {"author": "Michael", "source_link": "https://plus.google.com/110347619670230195222", "anchor": "gp-1321664219531", "service": "gp", "text": "The East Falls neighborhood in Northwest Philadelphia is named after the Falls of the Schuylkill -- the point where the river crossed the Fall Line -- that the neighborhood was built around.  The falls themselves are no longer visible, drowned by flood-control dams downstream.", "timestamp": 1321664219}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196802257065165", "anchor": "fb-196802257065165", "service": "fb", "text": "@Peter: were they using the water power at the time these cities started?", "timestamp": "1321664832"}, {"author": "Peter", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196866597058731", "anchor": "fb-196866597058731", "service": "fb", "text": "@Jeff: e.g. Pawtucket, Lowell (\"In 1814 on the Charles River in Waltham, Massachusetts, a group of Boston investors introduced the first integrated cotton textile mill. Here each step in the production of cloth from bale to bolt took place under one roof with machinery powered by water. Management also turned to an innovative source of labor, the daughters of New England Yankee farmers. The success of the \"Waltham Experiment\" encouraged investors to explore other sites on which to expand and print calico cloth. In 1821, they chose an area around the Pawtucket Falls on the Merrimack River at East Chelmsford, Massachusetts. This site became Lowell, the first large, planned, industrial city in America.\")", "timestamp": "1321676682"}, {"author": "Peter", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196866697058721", "anchor": "fb-196866697058721", "service": "fb", "text": "That's a yes, btw.", "timestamp": "1321676700"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/196741893737868?comment_id=196995487045842", "anchor": "fb-196995487045842", "service": "fb", "text": "@Peter: I think that's a different fall line.  Wikipedia calls that the \"new england fall line\" as opposed to the \"atlantic seaboard fall line\".  I was saying that I thought DC, philly, trenton, richmond, baltimore, NYC, etc were built before there was much use of water power.", "timestamp": "1321707545"}]}