The primary economic activity in the ancient Mesopotamia was agriculture. In the Lower Mesopotamia, where Sumer and Akkad occupied, they invented and utilized irrigation during dry seasons to ensure that adverse climatic fluctuations do not jeopardize their agricultural production. Sumerians grew barley, peas, and wheat. Besides, they reared goats, sheep, pigs, and other livestock. The combination of livestock rearing and growing of crops enabled the Sumerians to make a living from their activities. In this regard, farming helped the Sumerian people to increase food security and trade with other communities. The farming systems enabled them to improve their production, which they traded for metal products, wood, stones, and other commodities. Farming systems also assisted the Sumerian people to overcome harsh climatic conditions in the regions through irrigation.