Feudalism began as monarchs started giving control of local territories to lords. These lords controlled almost all aspects of life within their estates. Along with their lands, these lords also owned the peasants who lived on their land, as well as all of their possessions. The peasants were obligated to work for the Lords, farming their lands, and filling other necessary duties.
In exchange for this sovereignty, the lords pledged their loyalty to the king and promised to supply him with knights for his armies. Often a lord would have lesser lords whom he controlled, and greater lords whom he was loyal to.
One of the virtures of being very young is that you don''t let the facts get in the way of your imagination.
The Leaning Tower of Pisa took almost 200 years to build.