Kublai Khan and his 3 other brothers grew up in a yurt because they travelled alot.
When Kublai returned to northern China he found out that his brother was crowned the Great Khan and Kublai was angry. A civil war broke out between the two and Kublai ended up winning.
Kublai was very interested in the culture of the Chinese. He studied the philosophies of Ancient China such as Confucianism and Buddhism.
Kublai's army tore down this wall with catapults which at the time were called trebuchets.They ended up defeating the Song who were behind the wall
Kublai's brother promoted him to ruler of Northern China. Kublai was a really good ruler and being really successful. Kublai's brother told him to attack and then conquer the Song and all of southern China. While Kublai was obeying his brother he found out that his brother had died. He made a peace treaty with the song and once every year the Song would pay tribute to Kublai's brother.
Kublai ended up dying because he was overweight and sick. That was the end of his long wonderful journey.