Wrap-around maps suck

[Saxon]

The Greeks knew the world was round, but that knowledge was lost to Europe during the “Dark Ages.” The Muslim civilization kept this knowledge, as well as a lot of other Greek advances, alive during this period, as well as making a lot of other neat advances like algebra. As Europe came out of the Dark Ages, it was not so much that they were discovering things, but that they were getting information from the Islamic world. The key difference, and why the world is as it is today, is what Europe did when they put the information together.