Final answer:
Christians abandoned anthropology for a time due to their opposition to Platonism, the emphasis on their own customs, and the shift towards Christianity becoming the official religion of the Roman Empire.
Step-by-step explanation:
During different periods in history, Christians abandoned anthropology for various reasons. In the early days of Christianity, Christians were critical of philosophy, particularly Platonism, which they saw as a rival school of spirituality. Christians also focused on their own customs, such as prayer, house churches, and baptism, which created a strong communal identity. Additionally, when Christianity became the official religion of the Roman Empire, there was a shift away from polytheistic beliefs and practices.