[calderknight]

I don't think those things have ever been widely considered AI. It may have widely thought that those things would require AI, though.

[beambot]

Chess is featured in Peter Norvig's "Artificial Intelligence: A Modern Approach" dating back to the 1st edition (1995) and at least up until the 3rd edition (2009). Algorithms such as alpha-beta pruning were definitely considered AI at the time.

[intelkishan]

It's even mentioned in the recent 4th edition(2020).

[calderknight]

Yeah AI has multiple denotations, those things have never been considered "real" AI tho

[robotresearcher]

The MIT AI Group, including Marvin Minsky, were the mainstream of AI more than 50 years ago, and begat the MIT AI Lab. They and everyone else at the time called their work AI.