The official age of the temples of Malta and the first high culture with 4000 - 6000 years is unbelievable. The C14 isotope method could never be unequivocally assigned to the stone. That these are the oldest monuments of mankind is since 2000 also no longer credible because of Göbekli Tepe. Archaeoastronomical calculations at the Mnajdra complex in Malta even suggest that the temples are around 21,000 years old. See also "Das Vermächtnis der Tempel von Malta" by AncientMail Publisher.