Sanchez wrote in Arithmetic in Maya that another base 5, base 4 abacus had been found in the Yucatán Peninsula that also computed calendar data.
sˈæntʃɛz ɹˈoʊt ɪn ɚɹˈɪθmətˌɪk ɪn mˈaɪə ðæt ɐnˈʌðɚ bˈeɪs fˈaɪv, bˈeɪs fˈoːɹ ˈæbækəs hɐdbɪn fˈaʊnd ɪnðə jˌuːkɐtˈɑːn pənˈɪnsjʊlə ðæt ˈɔːlsoʊ kəmpjˈuːɾᵻd kˈæləndɚ dˈeɪɾə.