People have been farming for 12,000 years and it was only with the advent of machines that we reached a new level. Yesterday I listened to the audiobook “Hunger” by the Norwegian writer (Nobel Prize winner) Knut Hamsun. And I realized that humanity has come a long way since the 1890s. There are fewer and fewer starving people on the planet. A piece of bread is now much more affordable than 200 years ago.
It depends on what you consider farming. Supposedly, the earliest forms are 20K, but it was rudimentary. But, it doesn't really matter on the timeline anyway :)
Percentage wise perhaps! Would be interesting to see it adjusted for population growth. My question always is however, is surviving living?