It's not often we celebrate the birthday of a file format, but we're making a special exception for the GIF, which was created on June 15th, 1987 — making today its 25th birthday. Compuserve originally introduced the GIF; former chief technology officer Alexander Trevor recently told The Daily Dot that "if you want lossless, compressed graphics, there is nothing better than GIF," but the file format has evolved significantly since those beginnings. "

Short article at TheVerge