The process of amending the constitution is difficult, and it happens rarely.
The Articles of Confederation prevented the government from taxing, forming a defense, and provided no justice and law-making system. The Constitution formed a permission to tax and a tax regulation, allowed congress to form a defense system, and formed a bicameral legislative system. The Constitution also established the court systems and the supreme courts.
In AD 43 the Roman conquest of Britain began; the Romans maintained control of their province of Britannia until the early 5th century. The end of Roman rule in Britain facilitated the Anglo-Saxon settlement of Britain, which historians often regard as the origin of England and of the English people.
According to Adam Smith, "the Invisible hand" was the "supply and demand" aspect of the market system, in which the amount of goods produced was dependent on the amount of goods demanded.
