IFLScience
shared a link post in group #IFLScience
www.iflscience.com
Obsidian Blades At The Main Aztec Temple Came From Enemy Territory
The Aztecs used obsidian for ritual purposes as well as everyday tools.
Comment here to discuss with all recipients or tap a user's profile image to discuss privately.
Embed post to a webpage :
<div data-postid="wbnwmzn" [...] </div>