Without disregarding other lines of work, but from the neolithic revolution to the early modern times, the vast majority of the population were farmers. Quoting Brett Deveraux:
"Prior to the industrial revolution, peasant farmers of varying types made up the overwhelming majority of people in settled societies (the sort with cities and writing). And when I say overwhelming, I mean overwhelming: we generally estimate these societies to have consisted of upwards of 80% peasant farmers, often as high as 90 or even 95%." (https://acoup.blog/2025/07/11/collections-life-work-death-an...)
"Prior to the industrial revolution, peasant farmers of varying types made up the overwhelming majority of people in settled societies (the sort with cities and writing). And when I say overwhelming, I mean overwhelming: we generally estimate these societies to have consisted of upwards of 80% peasant farmers, often as high as 90 or even 95%." (https://acoup.blog/2025/07/11/collections-life-work-death-an...)