To confirm the general observation, and to display the multitude of slaves, we might allege a variety of particular instances.

It was discovered, on a very melancholy occasion, that four hundred slaves were maintained in a single palace of Rome.

The same number of four hundred belonged to an estate which an African widow, of a very private condition, resigned to her son, whilst she reserved for herself a much larger share of her property.

A freedman, under the name of Augustus, though his fortune had suffered great losses in the civil wars, left behind him three thousand six hundred yoke of oxen, two hundred and fifty thousand head of smaller cattle, and what was almost included in the description of cattle, four thousand one hundred and sixteen slaves.
The number of subjects who acknowledged the laws of Rome, of citizens, of provincials, and of slaves, cannot now be fixed with such a degree of accuracy, as the importance of the object would deserve.

We are informed, that when the Emperor Claudius exercised the office of censor, he took an account of six millions nine hundred and forty-five thousand Roman citizens, who, with the proportion of women and children, must have amounted to about twenty millions of souls.