of the world's distant past at the time. The book proved an immediate success and brought Clark far greater visibility and opportunities. In 1960, Clark returned to Peacock Farm to oversee a small excavation designed to recover material that could be subjected to the newly developed process of radiocarbon dating. He also grew increasingly interested in Greek prehistory, and gained a permit to excavate the Neolithic Nea Nikomedia mound near Veroia in eastern Macedonia. He did not personally lead the excavation, which took place in 1961, instead leaving that to his student Robert Rodden, who was assisted by fellow students like David L. Clarke, Charles Higham, and Colin Renfrew. After his visited the excavation, Clark proceeded to Turkey to visit James Mellaart excavation of the Neolithic site at Çatalhöyük. Clark then furthered his interest in south-eastern Europe by writing an article for the Proceedings which synthesised newly discovered radiocarbon dates to argue that farming originally spread across Europe from Greece and the Western Balkans. In early 1964, Clark made his first visit to the Antipodes as he spent time as the William Evans Professor at Otago University in New Zealand, using the opportunity to learn more about Maori prehistory. In May of that year he used the Commonwealth Visiting Scholars' appointment to fund a period in Australia, where he spent time at the University of Sydney, Queensland Museum, and the Australian Museum. He also visited Vincent Megaw's excavation of the Curracurrang rock shelter and was taken by Norman Tindale to witness a living hunter-gatherer society at the Papunya indigenous community. In November 1965, he undertook a lecture tour of the U.S., giving talks at Pennsylvania State University, Temple University, the University of Michigan, the University of Chicago, the University of Colorado, and Colorado Women's College. That year Hutchinson published a book that Clark had co-written with Piggott, Prehistoric Societies, and in 1967 Thames and Hudson published Clark's coffee table book, The Stone Age Hunters. In 1968, he published a revised second edition of World Prehistory, although it attracted criticism from archaeologists studying Africa for making significant errors about that continent. In 1968, he travelled via Moscow to Japan in order to attend the International Conference of Anthropological and Ethnological Sciences, using the trip to spend time in Taiwan, the Philippines, and New Zealand. In 1969, he was then appointed visiting Hitchcock Professor at the University of California-Berkeley; his lectures there