The Industrial Revolution and the Industrial Revolution

In the eighteenth century, a group of thinkers who were linked to the emerging classical liberal movement said prevailing wisdom is wrong. They argued that human beings can make the world more peaceful promoting commercial intercourse between nations. And if you're trading with individuals on the other side of a national frontier, it may be that you have allegiances to different kings or princes or religious leaders. You've got some influence on whether or not your country will go to war with a neighboring state. A self sufficient farmer or merchant who only does business with people of the same nationality likes ta people with ame colored passport.