Post an anime character who has accomplished a lot for their age.

Edward Elric.

Ciel Phantomhive.

At the age of 10, he was knighted by Queen Victoria herself, is the president of one of the most popular toy and confectionaries company in the world, and to simply put it, he's stolen a lot of people's futures. B|

In heels no less. x3

L from Death Note has solved some of the greatest mysteries and cases in the world as well as helped in the prevention of World War III when he was only eight years old.

Light Yagami. At only age seventeen he got the whole world's attention and became known as a god named, Kira. His strategies kept him alive for four years while using the Death Note, WAY longer than any other human lasted, according to Ryuk.

I don't know... Madoka perhaps?

i guess iwaki kyosuke at 32 he's already the president of a talent agency btw isn't he adorable ^///^

Sakura from cardcaptor sakura

Lelouch from Code Geass. He destroyed the world as he knew it and remade it...all while in high school.

Hakase Shinonome (the little girl on the right) is an eight year old prodigy! It is implied that she doesn't go to school because, well... she's already finished it. xD;; She built the android Nano, who is on the left.

Well i guess Nanoha!

Ichigo Kurosaki from Bleach.
Believe it or not he's only 17...he's so sexy and hot that he looks like 25, I know!!
Anyway, IMO he's achieved a lot for his age:
-Defeated a Menos Grande, despite he had almost no experience.
-Mastered Bankai in a couple of days (usually takes ten years).
-Changed Soul Society's thousand-year-rigid laws
-Defeated captains, Espadas, Fullbringers and the most badass characters.
-Achieved Shinigami captain level (though not officially).
- Became a Vizard and a Fullbringer...

Gaara