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The roller coaster first emerged in Russia in the form of a giant ice slide. The structures were built of lumber, covered by a sheet of ice several inches thick, with a 50-degree drop
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There is some debate over who was the first to place wheels on the sliding cart some credit the Russian and the others credit the french. Large slides with wheeled carts appeared around 1784.
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Two coasters called Les Montagnes Russes and Belleville and promenades audiences are considered the first coasters to lock the cars on the track by having the axles side to into a groove cut.
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A mining company in summit hill constructed the Mauch chunk switchback Gravity Railroad, by the 1850s it was used as a ride.
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The first coaster to loop was the coaster of Frascati Gardens in Paris, It was 43 foot high with a 13-foot wide loop.
