I wrote my first lines with actionScript 2 with Flash MX.
A few years later, I learned the algorithm.
After some time spent in different languages, the evolution of the web made me come back.
edit: Ho. I forgot about that. But true first lines of code were in Logo, on Thomson's TO7. I was about seven years old.
Ruby, as far as I know. Still noob in it :p but can be considered as my strongest language if you won't believe then see my codes which are not more than a line. Hope, you enjoy my answer and my codes both.