What are some notable scams in history that went unnoticed for so long?

https://lemmy.ml/post/3120182

What are some notable scams in history that went unnoticed for so long? - Lemmy

Compound interest
In what way is compound interest a scam? Who has been “scammed” by compound interest and how?

For most of history charging interest was considered very unethical. There’s even a derogatory term for it: usury.

It’s a rather recent phenomenon that usury has become acceptable.

Yep. The one time Jesus got violent in the Bible, it was against the money lenders.
And that means it’s a scam today how exactly? The Bible was pretty explicitly against a lot of things. Are they scams? Is wearing two different fabrics a scam? Is eating shellfish a scam?