Final answer:
The Roman Senate was one of the two houses of the early Roman republic. Sustenance refers to the necessary food and drink to stay alive. City-states were units that controlled surrounding territories and served as the center of their cultural life. The Roman's first code of law was established around 450 B.C.E. and feudalism started around 700 C.E.
Step-by-step explanation:
1. Roman Senate: one of the two houses of the early Roman republic. 2. Sustenance: food and drink; necessary foods in order to stay alive. 3. City-states: units that controlled surrounding territories and served as the center of their cultural life. 4. Around 450 B.C.E., the Roman's first code of law was established. 5. Feudalism started around 700 C.E.
Learn more about Early Roman government and ancient civilizations