Short answers, pulled from the story.
Gregory King estimated that there were 150,000 farmers in England during the late seventeenth century. He defined them by their tenures as freeholders counted separately from tenants paying leasehold rent.
Sumerians developed an agriculture specialized labor force heavily dependent on irrigation by 5000 to 4000 BCE. They relied on three-person teams when harvesting during the spring months.
A modern farmer produces enough food to feed well over one hundred people while one farmer in the US of the 1930s could produce only enough food to feed three other consumers. Technology advancements have drastically increased output per worker despite these resource constraints.
Women constitute more than 40% of agricultural employees worldwide. Over half a billion farmers are smallholders located mostly in developing countries who economically support almost two billion people globally.
The National FFA Organization was founded in 1925 and provides agriculture education for middle and high school students. The organization serves as part of youth organizations that teach young people how to farm sustainably alongside groups like 4-H which started in 1902 with approximately 6.5 million members aged 5 to 21 years old.