The census

• He formally divided up the citizen population into classes based on wealth. Each class contributed to war differently to how much they could afford. It was compulsory for Citizens to enter.
• First class - Richest formed cavalry, rest fought as heavy infantry, Equipped with: sword, breastplate, bronze helmet, spear, greaves and round shield. Divided into 'seniors' (protected the city) and 'Juniors' (who marched out to war).
• Second Class - Same equipment as the First class, but they had long shields and weren't required to wear a breast plate.
• Third Class - Same equipment as the second class but no Greaves
• Fourth Class - Heavy spear and throwing javelin required, but nothing else.
• Fifth Class - Used slings and stones; no armour
• Everyone else - exempt from military service
• The rich complained so Servius decreed that what class a citizen was in would now also determined the value of his vote in elections
• Servius also introduced a new tribal system, it described where a citizen lived in Rome