The September 1993 editorial (ANTIQUITY 65: 44–5) made comment on recent Australian dates, by luminescence techniques, significantly older than radiocarbon determinations from elsewhere in Australia and New Guinea, which formed a single continent in the late Pleistocene. (There are hints also from the Americas of a discrepancy between dates by the two methods.) The period involved, c. 30-60,000 years ago, is crucial also in the Old World mainland, where the beginning of the European Upper Palaeolithic is usually set at c. 35,000 years ago by radiocarbon determinations.