(For those who don't know, Princip was the guy who shot Archduke Ferdinand and set about the grounds to begin World War I, an event that basically created the mess we're in today...)
In a national census (2001) Universities across Australia tried to get as many students to put "Jedi" down as their religion.
If you get over a certain number (a few thousand) it automatically becomes an official religion. It ended up getting around on email and on the national news, fuelling the whole thing.
Despite threats of fines from the government, they got about 70,000 people claiming to be Jedi.