Except this statement is wrong. The veil that Middle Eastern wear, for example, is from Sumer. Blame the onset of Agriculture. Women had to stay home and care for children while Men could go out and do politics. Over time, a great divide occurs. There are some cultures that did not follow the patriarchal system as seen in Mongols or Vikings, and even Spartan women had many rights in comparison to Athens Women. -Moon Water-
Social Class: Women were treated civil. They were taught to read and write, they could even own land. Spartan women were expected to marry and give birth. Women also were pushed to participate in athletic contests and festivals.
Women had much more freedom and a larger role in society compared to other city-states. Woman were expected to stay fit and healthy. That was so when they got pregnant, there kids would be healthy. Spartan women had to be almost as educated as men because they were expected to take care of their interests and those of their husbands when the men were away at war, a regular occurrence in Spartan life. Woman could not participate in politics, but were allowed to own their own property.