 However, five traits in particular were shown to be widely-attested among the languages, with boundaries coinciding with that of the Mesoamerican region and having a probable origin through diffusion.They then compared the five traits with the traits defining other language areas considered to be well-established, like the Mainland Southeast Asia linguistic area and Balkan language area.They concluded that by comparison the proposed Mesoamerican language area could indeed be considered a well-founded area