This list of 110 items is the basis of the large lexicostatistical data collection of the Tower of Babel project and serves also as the basic concept list of its successor, the Global Lexicostatistical Database. The list itself is a merger of Swadesh 1955 100 and Yakhontov 1991 100. It is also available in Starostin 2007 110 with ranks reflecting the supposed stability of the items.