Question

What had Ellis island become the site of by 1891?​

Answer 1

Ellis Island Dedicated as a National Monument
In 1965, President Lyndon Johnson declared Ellis Island part of the Statue of Liberty National Monument.

Answer 2

From 1892 to 1954, over twelve million immigrants entered the United States through the portal of Ellis Island, a small island in New York Harbor. Ellis Island is located in the upper bay just off the New Jersey coast, within the shadow of the Statue of Liberty.