Morning stiffness is often an early sign of arthritis. Stiffness that lasts for a few minutes is usually a symptom of a degenerative form of arthritis. Stiffness that lasts for several hours is generally a symptom of inflammatory arthritis and is typical of RA.
Early cities developed in a number of regions, from Mesopotamia to Asia to the Americas. The very first cities were founded in Mesopotamia after the Neolithic Revolution, around 7500 BCE. Mesopotamian cities included Eridu, Uruk, and Ur. Early cities also arose in the Indus Valley and ancient China.
A written language developed around 3300 BCEâcivilization is official! The first civilization to develop was called Sumer in southern Mesopotamia. Sumer was a collection of city-states, most of them with thick defensive walls because the city-states were often at war with one another.Major cities included Eridu, Uruk, Ur, and Lagash. written language developed around 3300 BCEâcivilization is official! The first civilization to develop was called Sumer in southern Mesopotamia. Sumer was a collection of city-states, most of them with thick defensive walls because the city-states were often at war with one another.