When Dick Grayson debuted in 1938's in the pages of Detective Comics (1937) #38, he originated the role of Batman's colorfully dressed teen sidekick, Robin. Grayson would carry this mantle until 1984's "The Judas Contract" story where he (along with Marv Wolfman and George Pérez) forged a new crime-fighting identity in Nightwing, during which his rivalry with Deathstroke really took off. I know that DC and Comixology recently re-released a digitally remastered version of the series, but posted below is a scan of the original 1986 Who's Who entry from issue #17 (XVII) featuring art by the Nightwing persona's co-creator, the legendary George Pérez.
