For 5,000 to 8,000 years, more than 240 million acres (970,000 km2) of prairie grasslands were a major feature of the landscape.[2] Between 1800 and 1930, the vast majority was destroyed.
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For 5,000 to 8,000 years, more than 240 million acres (970,000 km2) of prairie grasslands were a major feature of the landscape.[2] Between 1800 and 1930, the vast majority was destroyed.