I
Each day, a new historical prompt appears — a person, battle, council, invention, discovery or landmark. Nothing repeats for over three years.
II
Answer the question: the year it asks for (birth, death, a battle, a signing — the question always says which), the continent, and one associated figure. Any form of a person's name counts — "Nimitz", "Admiral Nimitz" or "Chester Nimitz".
III
Score up to 5 points — the exact year earns 3, within 5 years earns 2, within 10 years earns 1; the continent earns 1; a correct figure earns 1.
IV
Create or join a league with friends and family, and compare scores on the leaderboard.