The reaction to the project was not universally enthusiastic. Several weeks ago, the Princeton historian Sean Wilentz, who had criticized the 1619 Project’s “cynicism” in a lecture in November, began quietly circulating a letter objecting to the project, and some of Hannah-Jones’s work in particular. The letter acquired four signatories—James McPherson, Gordon Wood, Victoria Bynum, and James Oakes, all leading scholars in their field. They sent their letter to three top Times editors and the publisher, A. G. Sulzberger, on December 4. A version of that letter was published on Friday, along with a detailed rebuttal from Jake Silverstein, the editor of the Times Magazine.

The letter sent to the Times says, “We applaud all efforts to address the foundational centrality of slavery and racism to our history,” but then veers into harsh criticism of the 1619 Project. The letter refers to “matters of verifiable fact” that “cannot be described as interpretation or ‘framing’” and says the project reflected “a displacement of historical understanding by ideology.” Wilentz and his fellow signatories didn’t just dispute the Times Magazine’s interpretation of past events, but demanded corrections.

In the age of social-media invective, a strongly worded letter might not seem particularly significant. But given the stature of the historians involved, the letter is a serious challenge to the credibility of the 1619 Project, which has drawn its share not just of admirers but also critics.

Nevertheless, some historians who declined to sign the letter wondered whether the letter was intended less to resolve factual disputes than to discredit laymen who had challenged an interpretation of American national identity that is cherished by liberals and conservatives alike.

“I think had any of the scholars who signed the letter contacted me or contacted the Times with concerns [before sending the letter], we would've taken those concerns very seriously,” Hannah-Jones said. “And instead there was kind of a campaign to kind of get people to sign on to a letter that was attempting really to discredit the entire project without having had a conversation.”

Underlying each of the disagreements in the letter is not just a matter of historical fact but a conflict about whether Americans, from the Founders to the present day, are committed to the ideals they claim to revere. And while some of the critiques can be answered with historical fact, others are questions of interpretation grounded in perspective and experience.

In fact, the harshness of the Wilentz letter may obscure the extent to which its authors and the creators of the 1619 Project share a broad historical vision. Both sides agree, as many of the project’s right-wing critics do not, that slavery’s legacy still shapes American life—an argument that is less radical than it may appear at first glance. If you think anti-black racism still shapes American society, then you are in agreement with the thrust of the 1619 Project, though not necessarily with all of its individual arguments.