An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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The state with the longest coastline in the Continental U.S. is Michigan.
31
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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It's still possible to see the division between East and West Germany due to different light bulbs.
5
Every year, Alaska has about 5,000 earthquakes.
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Check your map! Virginia extends farther west than West Virginia.
67
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
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