Nirvana's seminal 1991 release Nevermind is among 50 recordings selected to be preserved forever in the Library of Congress' National Recording Registry for their cultural or historical significance. Astronaut Neil Armstrong's first words from the moon, speeches by President Wilson and Gen. Douglas MacArthur and songs by Al Jolson, Muddy Waters and others are among 50 recordings being added to the Library. Performances had to be 10 years old to qualify, with this being the third group of recordings to be added to the registry. Nirvana's classic release is currently the most recent release in the archive.
You can see a full list of the recordings being added to the archive here.
Meanwhile, a sign that reads "Come as You Are" was added below the "Welcome to Aberdeen" sign in Kurt Cobain's Washington hometown Monday, in time for the 11th anniversary of the late Nirvana frontman's death.