The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A cow produces around 200,000 glasses of milk in her lifetime.
373
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140