The Wealth of Nations by Part 3 Chapter 3 Page 1

Of the Rise and Progress of Cities and Towns, after the Fall of the Roman Empire

The inhabitants of cities and towns were, after the fall of the Roman empire, not more favoured than those of the country. They consisted, indeed, of a very different order of people from the first inhabitants of the ancient republics of Greece and Italy.

These last were composed chiefly of the proprietors of lands, among whom the public territory was originally divided, and who found it convenient to build their houses in the neighbourhood of one another, and to surround them with a wall, for the sake of common defence. After the fall of the Roman empire, on the contrary, the proprietors of land seem generally to have lived in fortified castles on their own estates, and in the midst of their own tenants and