Question

answer:
who build petra? when?

what did the nabataens build in the city during four centuries of power?

Answer 1

who build petra? when?
Os nabateus, por volta de 312 a.C.

what did the nabataens build in the city during four centuries of power?
Os nabateus construíram uma cidade muito famosa: Petra, que era um importante centro comercial, por onde passavam especiarias variadas e objetos de luxo.

Em inglês:

who build petra? whenThe Nabataeans, circa 312 BC.
what did the nabataens build in the city during four centuries of power?The Nabataeans built a very famous city: Petra, which was an important commercial center, it where passed varied spices and luxury objects.

Espero ter ajudado :)