Where is your question here? Anyway, I'll just provide a more detailed explanation about Knights:
A knight<span> is a person granted an honorary title of knighthood by a monarch or other political leader for service to the Monarch or country, especially in a military capacity. Historically, in Europe, knighthood has been conferred upon mounted warriors.</span>
Answer:The soil and the mild climate helped the Romans grow surplus olives and grain. Reliable food production allowed the population to grow, and the trade in olives and olive oil helped the Roman economy expand.