**utilized the advances of the industrial revolution**; allowed for fewer, larger, more productive farms and declined the need for large numbers of farm laborers, as well as increased food supply, diets, life spans, and populations; created inventions like the seed drill and barbed wire
started in the 1700s
__hallmarks__: mechanization, transportation improvements, refrigeration, natural fertilizers, soil science, increased selective breeding of plants and animals, large scale irrigation projects (5.1)