The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
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
Lurch, a Watusi bull, had the largest horns in the world.
32
You forget 90% of your dreams.
256