Background
The Babylonians have done it all, and they were the first to write about it. Their achievements include the Oldest Customer Service Complaint ⧉ , the Oldest-Ever Fake News ⧉ and the world's oldest boomers complaining about the rotten young generation which might be a fake, though ⧉ .
They were also into math, Algebra and Geometry ⧉ and used tables. Their use of tables on tables is roughly equivalent to what spreadsheets are today, once differences in available technology are accounted for. And just like their descendants nowadays, the Babylonians did make mistakes.
Plimpton 322 - answer key table for trigonometry problems, from Wikipedia, source unknown.
Discovery
TODO xxxxxxxxxxxx Desribe that some errors were discovered later - the story has multiple layers
Tablet Error
TODO xxxxxxxxxxxx Describe the error briefly without going into full detail.
Impact
xxxxxxxxxxxxxxx Describe the assumed impact