Here are 3 things Marcus Aurelius accomplished:
- At age twelve he become a follower of the stoic philosopher Zeno. As a stoic, Marcus controlled his emotions, did what was his duty, and lived simply.
- He was emperor of Rome from 161 AD to 180 AD. During his reign he invited his adopted brother Verus to rule with him. This was the first time the Roman Empire was ruled by two Emperors.
- He wrote several books including Meditations, which he wrote (in Greek) during a campaign between 170 and 180 AD. Meditations is a book of passages from one sentence to long paragraphs in length. These passages are about not indulging in emotions, because, he wrote, it is by letting your emotions over power you that other people can harm you. Marcus wrote that instead of living by emotions one should live by reason so that one can not be deceived by misconceptions about what is right and what is wrong.
My sources were
Famous Men of Rome by John H. Haaren, LL.D. and A.B. Poland, PhD. and the Wickipedia articles on Marcus Aurelius and his book
Meditations.