From [link|http://delphi.about.com/library/weekly/aa112902b.htm|the article Alex quoted:]

During his time with Borland he extended its' Turbo Pascal compiler. Eventually he became the chief architect for the team which produced the replacement for Turbo Pascal - Delphi.

Actually, he created Turbo Pascal, even before it was a Borland product (and probably before it was called "Turbo"); Phillipe Kahn employed Anders and brought him over to the States, and bought his compiler at the same time.


Further, from the same article:

As a chief architect at Borland, Hejlsberg secretly turned Turbo Pascal into an object-oriented application development language, complete with a truly visual environment and superb database-access features.

Uh, since Delphi was sold to millions of customers world-wide, it's hardly all that "secret", now is it...