He betrayed James and Lily Potter, faked his own death, and framed Sirius Black for everything.
At an unknown time, James and Lily held a Christening for Harry.
In Harry's near-death experience after Voldemort cursed him in the forest clearing, Albus Dumbledore gave Harry advice and background information on Voldemort.
He became the youngest Seeker in over a century and eventually captain of his house's Quidditch team, winning two Quidditch Cups as part of the team.
He became even better known in his early years for protecting the Philosopher's Stone from Voldemort and saving Ginny Weasley from the Chamber of Secrets.
It was quiet and quick, and only James, Lily, Harry, and godfather Sirius were there.
It is also known that for Harry's birthday Sirius bought Harry a toy Broomstick.
Harry chose to live, and after he awoke, he duelled Voldemort one last time, and defeated him.