The Taj Mahal took 20 years and 20 thousand men to finish!
83
A monk had once written over a book that contained information about calculus that was written by Archimedes in ancient Greece that could have made us 100 or even 1000 years more mathematically and technologically advanced.
13
February 1865 is the only month in recorded history to not have a full moon.
83
Until President Kennedy was killed, it wasn't a federal crime to assassinate the President.
341
During the Gold Rush in 1849, some people paid as much as $100 for a glass of water!
65
The first coast-to-coast telephone line was established in 1914.
33
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118