The NASA Delta Clipper did this in 1993..
True. Thats supposedly what inspired the original SpaceX rockets as I read. The big difference being it landed on little feet (like the rockets SpaceX has been running for years now), and also was tiny. The significant of this one is that it’s the largest rocket they’ve ever done. The thing is basically as tall as the Statue of Liberty. Nuts
Just be careful who you give praise to..