Marco Polo was a Venetian merchant who travelled the Far East reaching the empires of China and Mongolia. Along with his family, interacted with the emperors of both countries and was believed that he was once a special guest of a Chinese emperor during his travels. His voyage made the Europeans know more about the lands at the Far East of the globe and became vital for trade and industry.
He responded by not helping because he didn’t want to fight a war across an ocean
The oldest known peace treaty was the Egyptian-Hittite peace treaty. It is also known as Eternal treaty or Silver treaty. The treaty was signed between Hittite empire and Egypt in 1258 BC after the long war, which continued for over 2 centuries. After the Battle of Kadesh in 1274 BC, the sides sought a peace treaty because of heavy casualties on both sides. And it was ratified 16 years later that battle.
China's isolation by the himalayas prevented modernization and kept the ideas and technologies that were traded in europe and india out of there country. this also kept merchants and traders with goods that china could not access out of the country, however, this did decrease the chance of invasion because the mountains did provide protection. the chineese built the Great Wall completely isolating themselves and protecting there pure chinese cultures and traditions and they remained uneffected by the rest of europe.
The Romans destroyed the city of Carthage :)
