64.The Frisbee was invented in 1957.

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frisbee
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flyingdisc
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discgolf
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ultimatefrisbee
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discdog
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plastic
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aerodynamics
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spin
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catch
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toss
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toy
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game
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recreation
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sport
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championship
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tournament
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discathon
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freestyle
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distance
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accuracy
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sidearm
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backhand
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wind
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flightpath
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innovation
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design
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patent
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manufacturing
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sales
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popularity