What change made Byzantium more powerful?

Defensive walls were built around the city.
The region began to recover from civil wars.
The emperor seized more power from the military.
Constantine seized Christian churches and their wealth.

What three political groups came out of the french revolution.

Two books are used to model tectonic plates

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire