In 1498, Annius of Viterbo (an official of Pope Alexander VI) claimed to have discovered lost books of Berossus. These were in fact an elaborate forgery. However, they greatly influenced Renaissance ways of thinking about population and migration, because Annius provided a list of kings from Japhet onwards, filling a historical gap following the Biblical account of the Flood. Annius also introduced characters from classical sources into the biblical framework, publishing his account as Commentaria super opera diversorum auctorum de antiquitatibus loquentium (Commentaries on the Works of Various Authors Discussing Antiquity). One consequence was sophisticated theories about Celtic races with Druid priests in Western Europe.
Source: Berossus – Wikipedia