The Oxford Introduction to Proto-Indo-European and the Proto-Indo-European World
Our linguistic ancestors had used the wheel, were settled arable farmers, kept sheep and cattle, brewed beer, got married, made weapons, and had at least 27 verbs for the expression of strife. The subjects to which the authors devote chapters include fauna, flora, family and kinship, clothing and textiles, food and drink, space and time, emotions, mythology, religion, and the continuing quest to discover the Proto-Indo-European homeland.".