Jason was the son of the king of Iolcus, Aeson, but it was not certain who his mother was.
Jason's Life #4
When Jason was still a baby, Jason's half-uncle, Pelias, murdered killed all of Aeson's children and overthrew Aeson, but he didn't kill Jason.
Jason's Life #5
Jason was sent to the centaur Chiron who nurtured Jason to adulthood.
Why It Matters
Jason asked Pelias to step down from the throne rightfully. Pelias assigned Jason a quest in order to step down from the throne. Jason had to obtain the Golden Fleece. So Jason set up a team called the Argonauts and set sail on a ship called Argo. First the Argonauts went to an island called Lemnos where they slept with the women there and created their own race called the Minyans. Then they went to the islands called Doliones, Thrace and finally Colchis where they got the Golden Fleece.
Jason took the throne with the help of his friend Peleus. However, Jason died while he was sleeping under the stern of Argo when the stern fell on him.
Because Jason found the Golden Fleece, we can learn to be never stop until you did it, or die. Biblyography-(http://www.greekmythology.com/Myths/ Heroes/Jason/jason.html)