Thirty years! Happy Birthday Fritz (1)
In November 1991 ChessBase launched its first chess playing program for PCs. It was a modest start, but one that went on to completely change the chess world. Today, we start retracing the steps that led to the development of a fledgling chess program that went on to become one of the most powerful entities that has ever played the game – one that top players consult when preparing for their next tournament or match.
Source: chessbase.com