Mayan Knives and Daggers (Ancient Stone Artifacts)

Since the Mayan calendar ended on December 21, 2012 and a lot of people were worried about the end of the world, why not share some original old Mayan knives and daggers from Central America?
These ancient stone age artifacts were all legally obtained from old collections at gun shows , antique shops, artifact shows, and internet sites.
The first two are bifacially flaked flint knives that originally would have been mounted or hafted into a handle of some sort.
The black obsidian pieces in the middle are razor blades and blade cores.
Obsidian blades made using core and blade technology are sharper than modern razor blades and were used for many different things including shaving and weaponry.
The last 3 Mayan daggers are known as "stemmed macro blades" which are large and sharp stone blades made from flakes that were skilfully struck from a big flint core by master Mayan flint knappers using the same technology used to make the obsidian razor blades.
These are all about 1,000 or more years old.
Mayans are known for their brutal custom of human sacrifice.
To see what their human sacrifice ritual may have looked like, watch this scene from the movie "Apocalypto"(WARNING, it's VERY graphic!)
http://www.youtube.com/watch?v=y2PfmB...
Were any of these knives and daggers used for human sacrifice?
I really don't know but it's possible.
If you have any questions or comments please feel free to post them and don't forget to like, share, and subscribe.
Thanks for watching!