Which event belongs in place c on the timeline?

first egyptian hieroglyphs, 2900 bce
chinese issue the first paper money, 1024 ce
birth of astronomy, 85 ce
the wheel is used in mesopotamia, 3500 bce

answer; (wisconsin);

explanation: the badger state. this nickname originally referred to the lead miners, of the 1830s, who worked at the galena lead mines in illinois. these mines were in northwestern illinois close to the borders of wisconsin and iowa. the wisconsin miners lived, not in houses, but in temporary caves cut into the hillsides.

answer ( groundwater);