Final answer:
Anthropology became a scholarly discipline in North America in the 20th century, with the formal establishment of the American Association of Physical Anthropologists in 1930. The field has since evolved and expanded with the emergence of subdisciplines.
Step-by-step explanation:
Anthropology became a scholarly discipline in North America in the 20th century. The formal establishment of the American Association of Physical Anthropologists in 1930 marked an important milestone in the development of anthropology. However, the field has evolved over time, with significant contributions from various scholars and the emergence of subdisciplines such as medical anthropology and feminist anthropology.