Samurai Jack
Originally from an ancient Japan, Jack was flung into the far future by the evil Aku just before he could destroy him. Seeking a way back to his time period, has many adventures using his sword against Aku and his minions.
Jack is from ancient Japan. Before Jack was flung into the future, he was trained by the best warriors of his time. An archer (Robin Hood) who taught him how to use a bow, and how to sneak into enemy territory. An African chief who taught him multiple martial arts like the Cheetah, Antelope, Monkey, Snake, and Scorpion. Greek Olympians who taught him how to wrestle. Buddhist monks taught him to fight hand to hand and with different weapons, and Vikings taught him to sail. He was also trained by Egyptians to read hieroglyphs and other academic things and, at the very beginning of his training, a man told Jack about the constellations and directions. He was also trained how to track by a kindly desert tracker.
All trainers were friends of Jack's father, the Japanese Emperor. Jack's father trusted the trainers to train Jack in the event Aku would return and try to take over the world. When Jack was in his early 20's, he confronted Aku with his father's blade. Wanting revenge, Jack was beaten then thrown into Aku's prison with his father and mother. When Jack's father found out that he was going to get revenge on Aku instead of striking Aku down with honor, Jack's father taught him a lesson in humility. After Jack learned his lesson, he went back and confronted Aku a second time. The battle went bad for Aku, but before Jack struck the final blow, Aku tore open a portal in time, where his evil was law. Now Jack seeks to return to the past and undo the future that is Aku.
Good links: ComicVine