] For 50 years, computer programmers have been writing
] code. New technologies continue to emerge, develop, and
] mature at a rapid pace. Now there are more than 2,500
] documented programming languages! O'Reilly has produced a
] poster called History of Programming Languages (PDF:
] 701k), which plots over 50 programming languages on a
] multi-layered, color-coded timeline.

The History of Programming Languages