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  This is when glaciers withdrew form what is now the state of Iowa
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  The first known people to live in whats now Iowa were nomads following game to hunt
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  Trees and grasses begin to grow along streams and rivers
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  Evidence of crops being grown in what is now the state of iowa
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  United States buys large area of land west of the Mississippi, including what is now Iowa
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  Iowa becomes a part of the United States
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  State capital of Iowa moves from Iowa City to Des Moines
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  The first railroad through the state of Iowa is completed
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  The Rural Free Delivery Act made it possible for Iowa farmers to send and receive mail daily
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  Automobiles become widely used in the state making transportation easier for many Iowans
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  The Iowa Farm Bureau, an organization to support farmers and farming in Iowa was formed
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  Pioneer International first marketed hybrid seed corn which greatly Increased corn yields per acre in Iowa
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  Iowa native Herbert Hoover was elected as President of the United States
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  Death to these five Iowa brothers was the greatest casualty
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  Iowa John Mott of Postville wins a Nobel Prize for his work with the informational YMCA
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  The National Farmer Organization was founded and helped Iowa farmers get for prices for their conditions
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  Iowan Norman Borlaug wins Nobel Prize for his work in agriculture
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  The Iowa Caucuses begin and have a significant effect on choosing presidential candidates
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  Terry Branstad becomes governor of Iowa the first of five terms he has served so far.
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  Ted Waitt founds Gateway Computers in his grandmothers Iowa farmhouse.
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  Flooding in 1993 caused more than 2 billion dollars in damage.
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  Iowa adopts a new state slogan, "Fields of Opportunity."
