 Turning his attention to southern India , Wheeler discovered remnants of a Roman <unk> in a museum , and began excavations at Arikamedu , revealing a port from the first century CE which had traded in goods from the Roman Empire . The excavation had been plagued by severe rains and tropical heat , although it was during the excavation that World War II ended ; in celebration , Wheeler gave all his workers an extra <unk> for the day . It has since been alleged that while Wheeler took credit for discovering the significance of this site , it had previously been established by A. <unk> , the Superintendent of the Government Museum in Madras , and the French archaeologist <unk> Dubreuil , with Wheeler intentionally ignoring their contribution . He later undertook excavations of six megalithic tombs in <unk> , Mysore , which enabled him to gain a chronology for the archaeology of much of southern India . 
