Fridays are about our weird world. What could be weirder than the way we view history, peering at it through our own preconceptions, not even aware that we mostly view/see it. History (like our current experience) is more than visual. All the senses are involved.
Mark M Smith over at The Psychologist has a very interesting article on rediscovering a more complete sensory history. People's understanding/interpretation of what their senses detect does change over time. Disturbing to realise people believed they could "smell" race.