Map showing timeline and origins of populations who emigrated to the United States, 1820-2013. Italy became #1 in 1895-metrocosm

Origins of populations who emigrated to the United States 1820-2013, metrocosm.com 

Metrocosm sources:

• Immigration data: Department of Homeland Security’s Office of Immigration Statistics (download: full report, data in Excel format). The data used for the map is “persons obtaining lawful permanent resident status,” which does not include illegal immigration or, as pointed out by @artsyTrish, people brought to the U.S. as slaves (“forced immigration”).
• World borders: Natural Earth

Metrocosm: “From 1820 to 2013, 79 million people obtained lawful permanent resident status in the United States. The interactive map below 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. 

Use the controls at the bottom to stop / resume the animation or to move back and forth in time. Two Centuries of U.S. Immigration (1 dot = 10,000 people)”


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