President Donald Trump was once again accused of flunking history when he said President Andrew Jackson was “really angry” about the Civil War... which took place 16 years after his death.

Trump later clarified that he meant Jackson saw the war coming and “never would’ve let it happen.”

Given that Jackson was a slave owner who never supported abolition, the clarification doesn’t make the claim any less dubious.

The gaffe led Comedy Central’s “Midnight” to create the #TrumpTeachesHistory hashtag on Twitter, which quickly took off.

Here’s a sampling:

First the Chinese built the wall, and THEN sent the Mongolians an invoice for it!



#TrumpTeachesHistory — Zane Al-Snarky (@ZaneTheSane) May 2, 2017

Then Marie Antoinette offers them the most beautiful cake you've ever seen. @midnight #TrumpTeachesHistory — Orangina Bo Beena (@LaNaranjaMala) May 1, 2017

I've always believed marriage should be between 1 man & a series of progressively younger women #TrumpTeachesHistory pic.twitter.com/2estv6YzP8 — Donald J. Drumpf (@RealDonalDrumpf) May 2, 2017

Great guy this Isaac Newton. An apple falls on his head and he comes up with the iPhone. #TrumpTeachesHistory — Michelle Lipani (@michrom18) May 2, 2017

Trail of Tears. BAD. Imagine if Andrew Jackson had been there. #TrumpTeachesHistory @midnight — Collin Murr (@CollinMurr) May 1, 2017

Inauguration crowd was the biggest crowd in human history. Media airbrushed people out. Sad! #TrumpTeachesHistory pic.twitter.com/KpHuY8tX7H — CCH11 (@va_cc11) May 2, 2017

Rosa Parks refused to give up her seat on @united, very sad #TrumpTeachesHistory @midnight — Emperor Slow🎷ams (@ANGRYref) May 2, 2017

Robert E Lee. Such a horrible general believe me. But when he met Sara they made beautiful coffee cake #TrumpTeachesHistory @midnight — BackAtChya (@Qweenfunk) May 2, 2017

#TrumpTeachesHistory and here is a historically accurate portrait of Jesus. Trust me I know. pic.twitter.com/fLn6WT3BYM — Rick A (@changemation) May 2, 2017

"And Hercules grabbed the Lion by the pussy..."#TrumpTeachesHistory @midnight — Ɗєє ínαpprσpríαtєlч (@deedles420) May 1, 2017

"'Homo sapien' means 'attracted to the same gender,' so when someone asks if I'm a homo sapien, I always say no."#TrumpTeachesHistory — Craig Rozniecki (@CraigRozniecki) May 2, 2017

They signed one Declaration of Independence. SAD! I've signed like 5000 executive orders in the past 100 days. #TrumpTeachesHistory — Kris (@_Froggyluv) May 2, 2017

Not only did Lincoln fight vampires, Washington fought werewolves and Kennedy battled Zombies #TrumpTeachesHistory @midnight — The Burque Slasher (@mosh13505) May 2, 2017

Benedict Arnold, stand up guy, made the best eggs. If Washington had them, American Rev. would've ended. SAD. #TrumpTeachesHistory @midnight — Ando Joel (@AndyTalksStuff) May 2, 2017

#TrumpTeachesHistory Leonardo da Vinci, great guy. Invented the helicopter, but I loved him in the great gatsby. pic.twitter.com/NV0fBQFA5i — Darrell Riddell (@DarrellRiddell) May 1, 2017