This chapter is an attempt to identify the individual homelands of the five families making up the Transeurasian grouping, i.e. the Turkic, Mongolic, Tungusic, Koreanic, and Japonic families. Combining various linguistic methods and principles such as the diversity hotspot principle, Bayesian phylolinguistics, cultural reconstruction (“linguistic paleontology”), and prehistoric contact linguistics, the chapter aims to determine the original locations and time depths of the families under discussion. Integrating an archeological perspective, we further propose that the individual speech communities were originally familiar with millet agriculture, while terms for pastoralism or wet-rice agriculture entered their vocabularies only at a later stage in history.