More than one doctor has found their theories dismissed by the existing establishment, only to be proven right years later. Perhaps none of those stories are more dramatic than the story of Werner Forssmann, who, when faced with defeat, simply chose to go around everyone and do his experiment anyway - on himself.
One of the great questions of antiquity is what ancient knowledge might have been lost with the destruction of the famed Great Library of Alexandria. We can only guess at the answer, but the question itself reveals a fundamental misunderstanding of the library- what it was, where it was, why its was, and what happened to it.
In the US alone souvenir shops sold more than 21 billion dollars of merchandise in 2022. It is human nature to try and preserve memories, and one of the many ways we do that is to purchase keepsakes, mementos, or souvenirs - that remind us of where we’ve been. And evidence of that human instinct goes way back, well before anyone “exited through the gift shop”.