Answer:
40 percent
From 1892 until the center's closing in 1954, the small island in New York harbor served as the official entry and processing point for over 12 million immigrants. It has been estimated that over 40 percent of Americans can trace their ancestry through Ellis Island
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British claimed most of North America east of the Mississippi from France.
B. The invention of the balance made trade easier. Increased trade contributed to the development of more complex writing systems.
If you want to lift yourself up, lift up someone else.
You surely are doing that.