The Department of Education tried to mark Black History Month by tweeting about the famed black author and activist W.E.B. Du Bois.
Instead, it tweeted about W.E.B. DeBois, who is not a real person, but the result of a typo.
Here's the offending tweet.
Post updated - our deepest apologies for the earlier typo.— US Dept of Education (@usedgov) February 12, 2017
The department apologized for the typo.
A later version of the tweet corrected the error.
But people had already noticed.
W.E.B. DeBois is an example of somebody who’s done an amazing job and is getting recognized more and more, I notice.— Ian Millhiser (@imillhiser) February 12, 2017
Some tied this to President Trump's unusual comments about Frederick Douglass.
The NAACP saw this as a teachable moment.
Others just saw fodder for a pun.
Why didn't the Department delete that tweet?
It's probably illegal for any federal agency's official Twitter account to delete any tweets, Forbes reports. The Presidential Records Act of 1978 says basically any correspondence by the President "and his staff" must be preserved, and deleting tweets would likely violate that.
So the Education Department will never be able to delete this high-profile typo, or any other, unless the law changes.
WATCH | DeVos has already been met with controversy early in her tenure as Education Secretary. She was blocked from entering a Washington, D.C. public school by protesters.