One of the hardest ideas to teach young children is that history is a construct and liable to changing interpretations. Many really dislike the fuzziness of not knowing for sure. So we have to find reason why historians change their mind that is immediate and compelling. Possibly the best way of explaining at least one reason why historians have to revise their views is to show them how new technology, unavailable to historians in the past, now shines a new light on history.
Take for example the Maya.
Using new remote sensing equipment from planes, historians have discovered one of the largest Maya sites, larger even than Tikal. Only in the last five years did people know that it existed. The archaeological site was built during the beginnings of Maya civilization, which reached its height between AD 400 and 900, predominantly in modern-day Mexico and Guatemala. It was a time
