Fascinating Video: Everyone Who Has Emigrated to the United States Since 1820
From 1920 to 2013, 79 million people obtained lawful permanent resident status in the United States. This map visualizes all of them based on their prior country of residence. The brightness of a country corresponds to its total migration to the U.S. at the given time.
1 dot = 10,000 people
Through time, the immigration sources trace a clear path through the world. Starting in Western Europe with Ireland, Germany, and the U.K., the source moves east to Italy, Russia, and Hungary before shifting to the Americas