On December 3, KBS News announced that according to an official North Korean document dating back to January 5, 2011, no North Korean is allowed to have the same first name as Kim Jong Un.

You can imagine how annoying this kind of policy would be when you consider that Jong Un is a common name for men and women alike.

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According to KBS, the document was made a few months after Kim Jong Il publicly made Kim Jong Un his heir. The document instructs the Workers' Party and public security agencies to disallow people from naming newborns Jong Un and to make sure people who already have the name would "voluntarily" adopt new names. That means they need to change their birth certificates and residence registrations.

South Korea's Unification Ministry says it's highly possible that the news regarding this law is true due to the fact that Kim Jong Un's father Kim Jong Il and his grandfather Kim Il Sung had similar policies regarding their own names.

Under Kim Jong Il and Kim Il Sung's reign, other names besides their own were also banned. No one was allowed to have the name Kim Tae Yang due to the fact that "Tae Yang"--as K-Pop fans know--means "sun," Kim Il Sung's symbol. Citizens were also not allowed to have variations of the leaders' names. A name like Jong Il Bong, for example, would not fly because it has the same characters "Jong" and "Il" like Kim Jong Il's name. People also could not use the rulers' parents names. Kim Jong Il's mother's name Kim Jong Sook and Kim Il Sung's mother's name Kang Ban Suk were both also banned.