Stone artifacts have been found on Flores which can be dated to a million years ago. These artifacts are "proxies"; which means there were no skeletons of humans, but only a species of "Homo" could have made them. The artifacts are flakes and other implements, 48 in all, some of which show signs of being worked to produce a cutting edge. This means that humans were present on Flores by that date, but it does not tell us which species that was.