Tim Drake was created by Marv Wolfman and Pat Broderick.
He made his debut as Tim Drake in Batman #436, but in a flash back as a child in the audience when Dick Grayson's parents died.
As Robin, Tim was a member of Young Justice and leader of the Teen Titans.
It was during his tenure teamed with other young heroes that he learned valuable lessons that Bruce could never have taught him, such as the importance of friends.
Tim was always more similar to Bruce than Dick and Jason were, and as he grew under Batman's tutelage, their commonalities became more pronounced.
Tim, as Robin, became a masterful detective and crime fighter; he learned to out-think the many criminals that plagued the streets of Gotham.
Tim did not like Dick’s decision, maintaining that Batman needed a Robin.
At this time, Dick was going by the code-name Nightwing.
Tim tried to convince Dick to retake the mantle of Robin, saying it was the only way to keep Batman sane.
Afterwards, Batman allowed Tim to take on the mantle of the Boy Wonder, and gave him a modernized version of the costume.
In the New 52, Tim uncovered the identity of Batman, but pretended to have failed.
After the death of Jason Todd, Batman grew more violent and reckless.