British military scholar Gordon Corrigan relates the dynamics of medieval warfare and politics in his history of the Hundred Years' War.
Crusader Kings II, by Paradox Interactive, puts you in control of a medieval Christian dynasty between 1066 and 1453, challenging you to defend your borders, fill your coffers and consolidate power.
If you could ask Leonardo de Vinci one question what would it be?
What was the greatest contribution of the Renaissance?
If you could give Leonardo da Vinci some advice, what would it be?