Central nervous system - Structure. 1  The central nervous system consists of the two major structures: the brain and spinal cord. 2  Microscopically, there are differences between the neurons and tissue of the central nervous system and the peripheral nervous system. [citation needed]
They produced flour from the wheat they grew and sold it in other colonies or to Europe. These colonies were part agriculture and part industrial. Factories in Maryland produced iron and paper, textiles were produced in Pennsylvania factories. Lumber and shipbuilding industries also had success her.
The first enslaved Africans arrived in what is now the United States as part of the San Miguel de Gualdape colony (most likely located in the Winyah Bay area of present-day South Carolina), founded by Spanish explorer Lucas Vasquez vÃ¡squez De ayllon ayllÃ³n. in 1526ntil the early 18th century, enslaved Africans were difficult to acquire in the colonies that became the United States, as most were sold in the West Indies. One of the first major establishments of African slavery in these colonies occurred with the founding of Charles Town and the Province of Carolina in 1670.