By the late nineteenth century, the focus for the engineers and builders of tunnels was beginning to shift from Europe to the United States and especially New York, where the rivers encircling Manhattan captured the imagination of tunnelers and challenged their ingenuity. The first to accept the challenge was a somewhat mysterious Californian named DeWitt Clinton Haskin, who turned up in New York in the 1870's with a proposal to tunnel through the silt under the Hudson River between Manhattan and Jersey City.
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