In the United States, anthropology has traditionally been divided into the four field approach developed by Franz Boas in the early 20th century: biological or physical anthropology; social, cultural, or sociocultural anthropology; and archaeological anthropology; plus linguistic anthropology.
ɪnðə juːnˈaɪɾᵻd stˈeɪts, ˌænθɹəpˈɑːlədʒi hɐz tɹɐdˈɪʃənəli bˌɪn dᵻvˈaɪdᵻd ˌɪntʊ ðə fˈoːɹ fˈiːld ɐpɹˈoʊtʃ dɪvˈɛləpt baɪ fɹˈænts bˈoʊəz ɪnðɪ ˈɜːli twˈɛntiəθ sˈɛntʃɚɹi: bˌaɪəlˈɑːdʒɪkəl ɔːɹ fˈɪzɪkəl ˌænθɹəpˈɑːlədʒi; sˈoʊʃəl, kˈʌltʃɚɹəl, ɔːɹ sˌoʊsɪəkˈʌltʃɚɹəl ˌænθɹəpˈɑːlədʒi; ænd ˌɑːɹkiːəlˈɑːdʒɪkəl ˌænθɹəpˈɑːlədʒi; plˈʌs lɪŋɡwˈɪstɪk ˌænθɹəpˈɑːlədʒi.