How many years ago is 1901 from 2013?

What year is this MDCCCXCV11? Is 1997 in the mid 1990's or late 1990's? Which invaders of the roman empire were the first to reach the city of rome? What is the history of Duncanville? What is credited to Charlemagne? What was the role of the kings adviser in medieval times? what century was 1899? What Alexander Graham Bell? What three European kings led the Third Crusade? What are the 3 examples of traditional database? How did water fountains work before electricity? What were the lesser lords in a feudal system known as? What is a celebration of homage in the middle ages? How would a knight's life have been different if feudalism fell? How much did medieval armor cost in the middle ages? Did the Romans ever throw any Christians to the lions? What is a western calendar? When did the modern era occur? How did northern monarchs encourage the renaissance? What was Lindow Mans first name?