"From the endless supply of useless factoids i happen to call my mind-

Unicorns and Pegasus actually both originate from greece, the unicorn is largely connected to the medieval period, because that is when it became most famous because of the animal's mention in the bible.
The greek unicorn is a simbol of nature and purity, and originates from the writings of greek writers who were convinced the unicorn existed in India (which at that time was seen as a land of incredible wealth mistery and magic)
The medieval unicorn was a symbol of purity and holyness, because the bible said so (IT MUST BEH TRUEZ!1)
The pegasus is completly unrelated to the unicorn in every way, the only reason why the unicorn and the pegasus are connected is because those ********* from hollywood don't give a **** what the difference is as long as they are both horses.
Now put the money in the bag before the cops get here!"