Independence: 17 February 2008 (from Serbia)
Or do you have other informations?
How about - not a UN member because not enough countries recognize it?
How about - international law - from which stance - independence is not lawful (it is legal to declare it, but not legal separation (weird, I know)
How about - resolution 1244 of security council of UN which reaffirms kosovo as part of Serbia?
To remind you - kosovo was taken by force from Serbia, for "humanitarian reasons", because Serbs were "killing civilians" - couple of years ago european doctor who did the examinations of the bodies admitted evidence were fabricated and militants were dressed in the civilian clothes after death...
(And to remind you Osama Bin Laden was financing and helping separatists...)
And for so many other reasons that go against international law - it can not be recognized as a country - even though some of the strongest countries in the world want it...
So Kosovo is like a unicorn... no such thing