Think up something that has been lost?

Question

Can someone think up something that has been lost by the world? examples include: traditions, buildings, history, language, animals/plants...

No repeating of any of the above examples though!

Answer 1

My innocence.

Answer 2

The War on Drugs ;o)

ditto on Terror

Answer 3

MartinMM had a good answer.

A true American culture and an accurate understanding of who the founding fathers were (not perfect for one), what they thought, and why we have certain articles in our constitution.

The Library of Alexandria.  It housed an amazing wealth of knowledge.  Every ship that came to port had all of it's paperwork copied, and the copies were left with the boats and the originals were stored in the library.

The arc of the coveneant, assuming that ever actually existed to begin with.

Our marbles.

Answer 4

Virginity

Answer 5

Native American culture and cultures, since the influx of Europeans and Africans (the latter, of course, brought here involuntarily).

Answer 6

Palestine.

Answer 7

humanity

Answer 8

dignity