When the Spaniards a few weeks after evacuated the island, going by ship to Cuba, they took the liberty of further transgressing the treaty made with Penn and Venables, the British commanders, for, instead of taking their slaves with them, they turned them loose into the hills, with directions to harass the British as much as was possible. These slaves formed the nucleus of the Maroons, a body of mountain warriors whose deeds of daring and battle form a story too long and too interesting to be dealt with here.[215] The British speedily introduced African slaves into the island, and, after a few generations, the population had taken the contour it still preserves, namely, the pure whites, the colored folk (mixed breeds) and the pure blacks. For one reason and another, individuals in the last-named section obtained their freedom. Sometimes it was granted to them by masters who appreciated some special service rendered. Sometimes it was bequeathed to them by kind-hearted masters. At times it was a gift from the state for services rendered in times of rebellion or other disaster to the commonwealth.[216] Among the colored element of the population the tendency towards manumission was even more marked and extensive, for there the white fathers often not only bestowed freedom on their offspring but bequeathed to them comfortable, if not ample, means. Our immediate interest is, however, to be found among the blacks, for it is among them that we see a face and figure that holds our attention.