Sometimes in a genuine scientific way, sometimes in mystical ways, but always in an imaginative manner, Greek philosophers approached the big questions of life. Pythagoras considered a charlatan for claiming the doctrine of reincarnation, a half-naked Socrates harassing people on the streets with provocative and unanswerable questions, and Aristotle tutoring great generals: these are examples of how Greek thinkers dared to question traditional conventions and challenge their age's prejudices, sometimes putting their own lives on the line. Greek philosophy began around 600 BCE as an independent cultural genre, and its insights still persist in our times.
Marco Polo traveled to China in the 13th century, and saw several new things there.
Han in the Xiongnu were several of the battles from "133 BC to 89 AD". During the reign of the WU emperor where the Han Chinese won over the Xiongnu, before these battles the Xiongnu were a nomadic group that reigned in modern Mongolia.
During these battles political instability was generated, producing that the state of Xiongnu was divided in 2 parts and had crisis of successions, having massive revelations between its towns the Wusun, Wuhuan and Dingling.
In 60 BC Han China established the protectorate in the western regions beginning the decline of the Xiongnu reign.
I hope it helps you
Substitute any small words for larger words it creates longer sentences