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1868 - An article in the Poughkeepsie Journal introduced the idea of building a railroad bridge across the Hudson.
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1871 - The Poughkeepsie railroad bridge was chartered.
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1873 - The first cornerstone of the bridge was laid.
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1888 - The bridge opened in December and was considered a technological wonder.
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1889 - Trains started crossing and at that time it was the longest bridge in the world.
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World War II - through the war, the bridge carried troops to be shipped overseas. At its height, 3,500 train cars crossed the bridge on a daily basis.
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1974 - Fire severely damaged the tracks, ending almost a century of continuous use.
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1992 - Walkway Over the Hudson began its efforts to provide public access to the bridge and link rail trails on both sides of the Hudson.
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1998 - Walkway Over the Hudson assumed ownership of the bridge.
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2007 - Walkway Over the Hudson partnered with the Dyson Foundation to access public and private funding in order to transform the bridge into the world's largest pedestrian park.
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2008 - After a groundbreaking held in May, construction work began to transform the bridge into a pedestrian park.
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2009 - Walkway Over the Hudson State Historic Park opens to the public, October 3, 2009.