1779
Can you think of any now?
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A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules
This is a science community. We use the Dawkins definition of meme.
This is more like not being taught anything other than that they had "vomitoriums," without being told what they were. Vomitoriums existed. They still exist, too. It just means a large opening or passageway. Like the entrance/exit to the colluseum.
No, they literally taught that the romans feasted so much they had special rooms for vomiting in. One of my aunts was incredulous that it was no longer taught, and insisted she had been to rome and saw the vomitoria, and remains convinced that it's just some new theory by some fringe historian.