From NY Times:

Every five years, the inhabitants of the two villages, high up in Kosovo’s Shar mountain range, close to the boundary with Macedonia, come together for an extraordinary festival — its version of a Muslim rite of passage. For three days, upward of 3,000 people gather here to feast, sing and dance and take part in traditional Turkish sports, like wrestling.

...the distinguishing feature of this festival is the ceremony of Sunet, or circumcision, that takes place in one day for all of the host village’s boys age 5 or under — 111 of them this year in Gornje Lubinje.