What was unique about the first highway in the united states?

it was built by the government.
it was constructed by a private company.
it was paid for by the citizens of pennsylvania.
it connected four states in the west.

It was constructed by a private company.

Explanation:

indigenous people north and south were displaced, died of disease, and were killed by europeans through slavery, rxpe, and war. in 1491, about 145 million people lived in the western hemisphere. by 1691, the population of indigenous americans had declined by 90-95 percent, or by around 130 million people."

what are the others?