The life expectancy in 1900 was just 47 years.
49
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
India invented the Number System. Zero was invented by Aryabhatta.
59
Although Nostradamus died in the middle of 1566, his 1567 almanac was published because he had the foresight to prepare it before his death.
19
The Taj Mahal took 20 years and 20 thousand men to finish!
83
Because metal was scarce; the Oscars given out during World War II were made of plaster.
40
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
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81