Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
Your thumb is about the same size as your nose.
124
The strangers in your dreams are actually people that you've seen in real life.
50