In 1850, only 8% of the people in California were women.
0
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The state with the longest coastline in the Continental U.S. is Michigan.
31
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
Even Antarctica has an area code. It's 672.
58
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Australia's Great Barrier Reef is 1,250 miles long!
45