Question

How did immigrants have to prove a pass to be in the end to the United States

Answer 1

In 1907, no passports or visas were needed to enter the United States through Ellis Island. In fact, no papers were required at all. More than 12 million immigrants passed through Ellis Island between 1892 and 1954—with a whopping 1,004,756 entering the United States in 1907 alone, its busiest year.