Two Centuries of U.S. Immigration (1820 - 2013)

Two Centuries of U.S. Immigration (1 dot = 10,000 people)

Two Centuries of U.S. Immigration


Via metrocosm.com
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Alex E

“Maps are like campfires – everyone gathers around them, because they allow people to understand complex issues at a glance, and find agreement about how to help the land.”