Tight Feeling in Throat. A tight feeling in your throat can be very uncomfortable. This can also be an alarming sensation if you are unsure what is causing it. Different causes can cause a tight feeling in the throat to appear intermittently or constantly.
The origins of civilization can be traced to a group of people living in southern Mesopotamia called the Sumerians. By c.3500 BCE, the Sumerians had developed many of the features that characterized subsequent civilizations.
The First Civilizations. Around 5000 BCE, things slowly began to change. For the first time, humans started to settle down in one place. They began growing their own food and building permanent homes. The first cities were formed. People began using metals, such as copper and bronze, instead of stones to make tools. Then, around 3000 BCE, they created a system of letters and began to write. This new form of living was called civilization.