Have you heard of veganism? We go way back to the civilizations of ancient India and ancient Greece. Where it all began. 
I have but im not a Vegan myself
Oh ok, Im what you call an ethical vegan, We are often applied to those who not only follow a vegan diet but extend the philosophy into other areas of their lives, and oppose the use of animals for any purpose.
Are you a Vegan youself?
Sure am, Ive been a vegan for 4 years, Are you interested in becoming one or would like to know more about it? 
I would what else should I know
banned the consumption of meat for ascetic reasons, but none of them abstained from the consumption of fish; these monks were not vegetarians, but some were pescetarians. Vegetarianism was to reemerge somewhat in Europe during the Renaissance and became a more widespread practice during the 19th and 20th centuries. The figures for the percentage of the Western world which is vegetarian varies between 0.5% and 4% per Mintel data in September 2006. 
Ancient.
Ancient Indian subcontinent.
Ancient Indian subcontinent Early Jainism and Buddhism.
Jain and Buddhist sources show
Veganism
Veganism is the practice of abstaining from the use of animal products, particularly in diet, and an associated philosophy that rejects the commodity status of animals. A follower of the diet or the philosophy is known as a vegan. Distinctions may be made between several categories of veganism. "Dietary vegans" (also known as strict vegetarians) refrain from consuming animal products, not only meat but also eggs, dairy products and other animal-derived substances. The term "ethical vegan" is often applied to those who