Albanian lands, 1910
The League of Prizren, an Albanian political organisation, was founded on 10 June 1878, seeking autonomy within the Ottoman Empire and defend Albanian lands from being annexed by Serbia and Montenegro. Put down by the Turks in 1881, there were further revolts and in 1910 the Albanian chief Isa Boletin raised the red flag with the black double-headed eagle. An autonomous government was proclaimed in June 1911 and the flag was raised in Prishtina, Kosovo, one of the Albanian “vilayets” of the Ottoman Empire; the revolt spread rapidly.