One reason for the development of amn early civilization in the Tigris-Euphrates river valley was that.<span>periodic flooding </span>left<span> rich soil, which was ideal for farming.</span><span> </span>
Commercial areas in a city are areas, districts, or neighborhoods primarily composed of commercial buildings, such as a strip malls, office parks, downtown, central business district, financial district, "Main Street", or shopping centers. Commercial activity within cities includes the buying and selling of goods and services in retail businesses, wholesale buying and selling, financial establishments, and a wide variety of uses that are broadly classified as "business." While commercial activities typically take up a relatively small amount of land, they are extremely important to a community's economy. They provide employment, facilitate the circulation of money, and often serve many other roles important to the community, such as public gathering and cultural events.
Although there definitely existed "robber barons" who took advantage of a delicate and changing situation, most of these men were mostly well-meaning people who wanted to capitalize on an opportunity, and whose actions increased the welfare of many Americans.
