The location of the first battle of Bull Run was significant because?

D -Bull Run was the first war where railroads were used to transport soldiers. It was the first battle with large scale casualties (more than 20,000 dead or wounded). it played an important role in Union progress in the Western theater, and the Union victory gave Tennessee to the North.

Explanation:

result of the incas claiming exclusive right over numerous traditional routes, some of which had been constructed centuries earlier mostly by the wari empire