A new analysis of hundreds of obsidian artifacts from the Aztec Empire has revealed the vast trade networks that supplied ...

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SDSU Softball was eliminated from playoff contention with a loss in L.A. this weekend. The SDSU Softball team played well.

The discovery also sheds light on how the Aztec society evolved — introducing more standardized religion and control before the empire fell in 1520 — by showing how obsidian use changed over ...