Others argue the first Africans in Virginia were indentured servants as laws on lifetime slavery didn't appear till 17th century and early 18th century, but worked essentially as slaves.
Some experts say slaves first arrived at present-day Fort Monroe in Hampton, instead of Jamestown.
She then wrote for the Oregonian and later ProPublica before becoming a reporter for the Times in 2015.
Wilentz and the other signatories demanded corrections.
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The project argues that slavery was the country's origin and out of it 'grew nearly everything that has truly made America exceptional.