OK. As you look at this next exhibit, you'll notice something quite common - an ordinary bar of soap. Now, soap has been around a long time. In fact, the ancient Phoenicians produced soap as a substance for washing the body way back in 600 B.C. They made it by blending goat's fat with wood ash. The Phoenicians, as you may know, regularly traded along the Mediterranean, and they were the ones who introduced soap to the Greeks and Romans. Now, soap was not something welcomed by all countries. In fact, during the superstitious Middle Ages, many people were afraid to bathe their whole body too frequently. They thought it could be dangerous for their health - that it could even kill them. And even after the production of soap became common in some European countries in 11th and 12th centuries - even then some people in the heart of Europe refused to use it. You'll find it interesting that when a duchess was given a box of soap as a present in 1549, she was so insulted that she had the gift giver thrown off her estate! But by the 19th century the attitude toward soap had changed drastically. In some regions of Europe the tax on soap was so high that people secretly made their own. A baron went so far as to suggest that the wealth of a nation could be judged according to the amount of soap it used. Now, if you turn your attention to the next exhibit, you can see how soap is manufactured today.