Presence/absence matrix for seriation.

This Excel spreadsheet contains the database scores used for the seriation, where all values of 4 have been transformed into 1, and all values of 1, 2 and 3 have been transformed into 0. Values of 0 remained unchanged (see Main Text’s Fig 8). The cultural traits in this sheet are grouped according to their appropriate time period. For each trait, the abbreviation (column B), the age of first consolidated appearance (column C), and the appropriate time period (column D) are provided. See the Main Text’s Methods for the definition of the variables; Tables 1 and S1 provide further details on the considered cultural traits. (XLSX)