An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The average ice berg weighs 20,000,000 tons!
54
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41