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.
The World's First City. http://en.wikipedia.org/wiki/Eridu in Iraq (part of Mesopotamia civilization) is also claimed to be the oldest city (dating to 5000 BC). Both the definition of a city and the age of many cities is still disputed.