Even as far back as ancient Egypt [1]. And they had dentistry too [2]! Any time in history where they milled grains into flour with stone, you can see this pattern. In fact, it can be used to differentiate certain agricultural vs non-agricultural populations in the archaeological record [3].
[1]https://pubmed.ncbi.nlm.nih.gov/19396207/
[2]https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.2...
[3]https://pubmed.ncbi.nlm.nih.gov/16353225/