I’ve seen this mentioned many, many times and have only briefly checked it out. To put in a nutshell, it’s all about the first African slaves arriving in American and the leftist charge this this country was built on the backs of slaves.
According this author, it’s not a case of trying to clarify history as much as a canard to let the Left force reparations upon the rest of us.
Check it out and read this @ The Real Purpose of the 1619 Project