I believe the answer is:
- Pure mathematics
Proven by the difference in knowledge on astronomy between aztec culture and the Castillian.
- Urban architecture
Proven by the superior irrigation system that Aztec civilization had compared to Castilian civilization at that time.
<span>original and appellate! hope this helps! :)</span>
<span>The Battle of the Marne the Germans and the Allied troops started to build trenches from the North Sea to the Swiss frontier of France. This battle stopped the Germans from going through Belgium to get to France. They started digging the trenches on the Western Front on both sides starting on Sept 15, 1914
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#2 :guerilla warfare was first used in ancient times by The Chinese general and strategist Sun Tzu,
#6 : Samuel Adams
