Genghis Khan was born with the name of Temujin in around 1162.
When Genghis Khan was a teenager, his dad was poisoned by a rival tribe who invited him to dinner. This really did enrage the young Genghis Khan. He then did something about it later.
This enraged him and Genghis Khan and either him or his brother would be ruler so he killed his brother to be ruler. Some people thought he was to young to be a leader though but that didn't stop him.
He was now ruler after killing his brother. He gathered people from his tribe and invaded his past family friends tribe and ransacked the place. He then wanted to reunite all Mongol clans as one.
As his army got bigger and bigger, he thought of the idea of using bow and arrows. He also came up with the idea to use horses in battle. This tactic amazing. He then had over 20,000 battle warriors.
He then went on to concur many more tribes and to concur more territory. When he invaded and took over the tribe's territory, he would kill any of the people not willing to join him. He then eventually died at 65 in 1227.