Kevin Sieff, via a James Dias email:

In the version of history being taught in some Virginia classrooms, New Orleans began the 1800s as a bustling U.S. harbor (instead of as a Spanish colonial one). The Confederacy included 12 states (instead of 11). And the United States entered World War I in 1916 (instead of in 1917).
These are among the dozens of errors historians have found since Virginia officials ordered a review of textbooks by Five Ponds Press, the publisher responsible for a controversial claim that African American soldiers fought for the South in large numbers during the Civil War.
“Our Virginia: Past and Present,” the textbook including that claim, has many other inaccuracies, according to historians who reviewed it. Similar problems, historians said, were found in another book by Five Ponds Press, “Our America: To 1865.” A reviewer has found errors in social studies textbooks by other publishers as well, underscoring the limits of a textbook-approval process once regarded as among the nation’s most stringent.