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yoyos are found in greecian and other major civilization paintings and sculptures.
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no one truly knows when the yoyo was invented, but it is thought to be the second oldest toy ever. it was first patented by James L. Haven & Charles Hettrich
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The first manufacturing company in america was created, and on the same day, produced a dozen yoyo's
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Donald Duncan buys the company, and makes over $250,000 off the investment
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Yoyos become so big, Duncan Toys Company opens a factory specificly for yoyos in Luck, Wisconsin
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after a decline in sales after WW2, Duncan launched a series of t.v. advertisments, which turned out to be a big sucess.
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Swedish company SKF created the first ball bearing yoyo, allowing for longer tricks
