Architects and sculptors.
Architects were a big job because they built temples and other important things. Sculptors were needed to build statues.
The Crusades were a series of
religious wars sanctioned by the
Latin Church in the medieval
period. The most commonly
known Crusades are the
campaigns in the Eastern
Mediterranean
The best historical skill is "though the eyes" of Roman Empire. In other words how did the Roman people react to brutal violence of hurting one another in battles of parties-of 2 sides.
Using this historical skill the historian would interpret the reasons as to why the Roman Empire could allow battle fights. In the eyes of Roman Empire:fighting for power, win, justice, challenge for the Empire -and prosperity.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://en.m.wikipedia.org/wiki/Industrial_Revolution&ved=2ahUKEwjhrfe13tvgAhXLvY8KHYWsAdYQFjACegQIDBAO&usg=AOvVaw0ApZOr_pTE00NnY7C7FeUC
