Pennsylvania excelled in , and still continues in the industry today. A. Fishing
B. Ship building
C. Farming

Describe the technology advancements that lead to explorers being able to sail great distances. [[ps: doesn't explain where. i am only speculating it's in europe.

The source of wealth for the city-states of the east african coast was trade between the interior of africa and the far east. true false

Where did the first african american fighter pilots begin training?