A farmer (also called an agriculturer) is a person engaged in agriculture, raising living organisms for food or raw materials. The term usually applies to people who do some combination of raising field crops, orchards, vineyards, poultry, or other livestock. A farmer might own the farmed land or might work as a laborer on land owned by others, but in advanced economies, a farmer is usually a farm owner, while employees of the farm are known as farm workers, or farmhands. However, in the not so distant past, a farmer was a person who promotes or improves the growth of (a plant, crop, etc.) by labor and attention, land or crops or raises animals (as livestock or fish).
Farming dates back as far as the Neolithic, being one of the defining characteristics of that era. By the Bronze Age, the Sumerians had an agriculture specialized labor force by 5000–4000 BCE, and heavily depended on irrigation to grow crops. They relied on three-person teams when harvesting in the spring. The Ancient Egypt farmers farmed and relied and irrigated their water from the Nile.
Animal husbandry, the practice of rearing animals specifically for farming purposes, has existed for thousands of years. Dogs were domesticated in East Asia about 15,000 years ago. Goats and sheep were domesticated around 8000 BCE in Asia. Swine or pigs were domesticated by 7000 BCE in the Middle East and China. The earliest evidence of horse domestication dates to around 4000 BCE.