The highest class in the social scale at Rome was divided, roughly
rather than exactly, into two sections, according as they did or did
not aim at being elected to magistracies and so entering the senate.
To the senatorius ordo, which will be dealt with in the next chapter,
belonged all senators, and all sons of senators whether or no they had
as yet been elected to the quaestorship, which after Sulla was the
magistracy qualifying for the senate. But outside the senatorial ranks
there were numbers of wealthy and well educated men, most of whom
were engaged in one way or another in business; by which term is here
meant, not so much trading and mercantile operations, as banking,
money-lending, the undertaking of State contracts, and the raising of
taxes. The general name for this class was, strange to say, equites,
or knights, as they are often but unfortunately called in modern
histories of Rome. They were in fact at this time the most unmilitary
part of the population, and they inherited the title only because the
property qualification for the equites equo privato, i.e. the cavalry
who served with their horses, had been taken as the qualification also
for equestrian judices, to whom Gaius Gracchus had given the decision
of cases in the quaestio de repetundis.[97] This law of Gracchus had
had the result of constituting an ordo equester alongside of the ordo
senatorius, with a property qualification of 400,000 sesterces, or
about £3200, not of income but of capital. Any one who had this sum
could call himself an eques, provided he were not a senator, even if
he had never served in the cavalry or mounted a horse.

We are concerned here with the business which these men carried on,
not with their history as a body in the State; this latter difficult
subject has been handled by Dr. Greenidge in his _Roman Public
Life_, and by many other writers. We have to take them here as the
representatives of capital and the chief uses to which it was put in