sourced story
1892Reputable sourceWell documented

Ellis Island opens

On the timeline · around 1892 · Ellis Island opens187018801890190019101920

What happened

The immigration station in New York Harbor processed some 12 million arrivals over six decades.

Why it matters

Roughly 40% of Americans can trace an ancestor through Ellis Island — the demographic making of the modern country.

Sources

Ellis Island opens — A Timeline of American History · SourcedStory