They built a wall around the city to keep out invaders
Explanation:
During the reign of Aurelian and Probus, the Aurelian Walls were built around Rome. They built this wall because the Germanic tribes were becoming a threat to Rome so the wall was a way to protect the city. The Wall had 19 km long and 6 to 8 meters high.
In the end, the Aurelian Wall was a good idea because it took about 100 years so the barbarians reached Rome, that invaded the city in 410 marking the end of the Roman Empire.
the answer you are lookin for is the 1st one 3rd one and the 4th one
Because wiesel's memior was so effective it created a window between wiesel and the reader so that the reader could understand wiesel's understanding of the holocaust