The answer is the system of cooperation known as <span>feudalism ended around the 15th century. There were many factors that led to the end of feudalism. Among these are the formation of towns, the Crusades, Black Death and the growth of commerce and trade.</span>
Because time is a social construct. It was only created when civilization was created. Since there was no one to create time in the beginning of Earth we had to create it as far back as we could. So basically science as stuff created time to help people. Time wasn't a thing back then. It only became a thing when people became a thing.
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They were mostly recorded by the guards so it not likely they escaped hope this helps