Wigs spread from ancient Egypt to Europe. The ancient Greeks and Romans believed that the bald man was punished by heaven and regarded the bald as a sinner. Thinning hair or bald officers will be refused to arrange work for them by some Greek territory. The Romans had even intended to let Parliament pass the "bald decree" banning bald men from campaigning for parliamentarians, and a bald slave could only sell half-price. The bald men wore wigs to cover the flaw in order to avoid discrimination. Wigs were further popularized in the Roman Empire, and many Europeans used wigs, even the Emperor wore wigs, and the enemy's military and civilian hair was often a tribute to the palace. Some nobles also shave off the slave's hair and make a wig. The custom was that married women had to cover their hair, and some poor married women sold their hair to change money. Some of the poor peasants also put their hair into braids, long enough to cut off to sell the wig market.