Throughout the history of agriculture, it has met different ages of humanity in which pivotal changes occur. These changes would forever define the way that humanity would move forward and the pace at which they would do so. Occurring as early as 3000 BC, nomads would develop societies that would focus solely on the care and maintenance of livestock for a reliable food source. This development occurred in several places at once. Most of the domestication of animals would occur in the Great Hungarian Plain and the Northeast China Plain, where they would utilize cows and horses, sheep and even yaks. In Arabia, camels would be the staple of the diet there, though they would also use sheep, goats, and horses. The main thing that all of these people had in common, is that they based their entire lives off of the welfare of their herds, becoming the first shepherds in the history of humanity. This is important for agriculture because these domesticated animals would contribute to many farming techniques that improved crop yield.
It was as early as 2500 BC that the crudest plough was introduced to farming, which was dubbed the ard. The ard technology spread through Europe like wildfire, replacing the hoe as the most efficient farming technique. This equipment improvement substantially improved how fast you could cultivate land, while even increasing the amount of land that a single farmer could effectively manage. This would introduce many laws based on land ownership.
Jeffry Hill is an agriculture expert that talks about the impact of animal domestication on early agriculture.