The council was increased to four hundred members, one hundred from each tribe. Here, then, the tribe still served as a basis. But this was the only remnant of the old constitution that was transferred to the new body politic. For otherwise Solon divided the citizens into four classes according to their property in land and its yield. Five hundred, three hundred and one hundred and fifty medimnoi of grain (1 medimnos equals 1.16 bushels) were the minimum yields of the first three classes. Whoever had less land or none at all belonged to the fourth class. Only members of the first three classes could hold office; the highest offices were filled by the first class. The fourth class had only the right to speak and vote in the public council. But here all officials were elected, here they had to give account, here all the laws were made, and here the fourth class was in the majority. The aristocratic privileges were partly renewed in the form of privileges of wealth, but the people retained the decisive power. The four classes also formed the basis for the reorganization of the fighting forces. The first two classes furnished the horsemen; the third had to serve as heavy infantry; the fourth was employed as light unarmored infantry and had to man the navy. Probably the last class also received wages in this case.
An entirely new element is thus introduced into the constitution: private property. The rights and duties of the citizens are graduated according to their property in land. Wherever the classification by property gains ground, there the old groups of blood relationship give way. Gentile constitution has suffered another defeat.
However, the gradation of political rights according to private property was not one of those institutions without which a state cannot exist. It may have been ever so important in the constitutional development of some states. Still a good many others, and the most completely developed at that, had no need of it. Even in Athens it played only a passing role. Since the time of Aristides, all offices were open to all the citizens.