There are four main types of local government- counties, municipalities (cities and town), special districts, and school districts. Counties are the largest units of local government, numbering about 8,000 nationwide. They provide many of the same services provided by cities.
Sometime around 12,000 years ago, our hunter-gatherer ancestors began trying their hand at farming. First, they grew wild varieties of crops like peas, lentils and barley and herded wild animals like goats and wild oxen.
