How do we know the Olmecs were technologically advanced? (5 points) A: They created the first version of a calendar.
B: They invented tools using stones and metal.
C: They used latex from trees to create rubber.
D: They were the first to use a writing system.

Economic success prussia had a very strong economy, partly due to the success of the zollverein. stronger prussian army king wilhelm wanted to build a bigger, stronger army but was blocked by the prussian landtag (parliament).-credits to google for putting answer -credits to slideshare for making answer-credits to me for putting answer on brain.ly