For grown-ups
Cases are well-settled history from before 1950. Evidence statements are general and checkable (we do not invent quotations). The plague case is told gently, as numbers of people rather than suffering. The cast are the historian’s moves: Sourcing, Corroborate, Context — and Hindsight Hal.
What it never does
- No accounts, no ads, no tracking — progress stays on this device.
- No streaks, timers-to-beat, points to chase or leaderboards.
- No chat, and nothing your child makes is sent anywhere unless you choose to.