Q: How does Who Did work?

A short description of one historical event appears - "Telephone patented", "Periodic table published". Pick the person responsible from the choices. One wrong answer ends the streak.

Q: How are the distractors picked?

At low difficulty, distractor names come from any era - so the right answer often stands out by century alone. At higher difficulty the game prefers same-era distractors, where the player needs to know not just "who invented the lightbulb" but also distinguish Edison from Bell, Tesla, and Marconi.

Q: Where do the events come from?

A hand-curated pool of internationally-known events shared with the When Did and Order by When games.

Q: Does it work in my language?

The UI is fully translated into all 25 PlayMemorize languages. Event descriptions and actor names currently ship in English with locale fallbacks · translated content drops into the same data file as it becomes available, following the pattern Riddles and Analogies use.

Q: Is it free?

Yes, completely free. No account, no ads, no paywalls. Best streaks are saved locally in your browser.