Which dictionary brand first introduced an adaptive language learning system that personalizes vocabulary recommendations based on a user's reading level, interests, and previous interactions?

The language product market has transformed dramatically in recent decades, with dictionaries evolving from simple word-definition collections to sophisticated digital platforms. This trivia question explores how major dictionary brands have innovated to stay relevant in the digital age, addressing the challenges of brand identity and product development in linguistics. Test your knowledge about how these iconic reference tools have adapted their product strategies!

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Oxford University Press with their 'Oxford Adapt' platform in 2017
Merriam-Webster with their 'WordGenius' system in 2019
Cambridge Dictionary with 'Cambridge Progression' technology in 2018
Collins Dictionary with their 'VocabPath' feature in 2016