Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
34
In 1916, a US amendment was proposed to put all acts of war to a national vote. If you voted yes you would have to register as a volunteer for service in the United States Army.
5
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Poon Lim survived 133 days alone on a raft at sea by fishing, drinking bird blood, and killing a shark with a jug of water.
21