Ancient religions support a flat earth that does not move (geocentric). Opposing beliefs were discouraged by persecution and death. However, Pythagoras and Aristotle along with Copernicus and Galileo used science and empirical evidence to defunct the religious beliefs. Reluctantly, the Church conceded but the damage had already been done.
Meat is a very easy and rich source of nutrients and its consumption is almost normal. Some aspects of meat eating have been highlighted, for good and for bad sentiments.