Those are some really interesting pictures. Amonsgst the many, these few really caught my attention: 1) The Rosetta Stone (so THAT's how historians got an idea

Those are some really interesting pictures. Amonsgst the many, these few really caught my attention: 1) The Rosetta Stone (so THAT's how historians got an idea how to decipher hieroglyphs. i always wondered about that) 2) The Leonardo Da vinci diagram. (I see it lla the time on tv but never really understood what it was about until now. Its about human proportions ) 3) The lunar eclipse diagram. Because as far as i know, that was way before any telescopes were invented. Those guys did everything by observations and maths! 4) The Copernicus diagram. It's pretty cool because it was one of the first diagrams in the west that opposed the "earth is centre of the universe" concept. But what is more interesting about this is that Copernicus himself cites the work of Arab astronomers who have been challenging that model based on "The mathematics doesn't add up to your model of earth being the centre. The maths denies that the sun revolves around the earth."