0_Apprentice
I'm a vegetarian.  Do you know the history of vegetarianism? 
1_Wizard
From what I know Vegetarianism got it's roots in ancient India and ancient Greece
0_Apprentice
What vegetables did the people eat during that time? 
1_Wizard
Much the same as what we eat today. The concept is not to eat flesh. Some people include dairy and eggs while others don't.
0_Apprentice
So the practice is pretty much static? Has any advancements been made in it since the inception? 
1_Wizard
Other than things like meatless meats it's stayed the same. It's all connected with the idea of nonviolence towards animals. It was originally promoted by philosophers and religions
0_Apprentice
What other areas of the world is it practiced in? 
1_Wizard
It's practiced everywhere in the world to some degree. Vegetarianism was almost gone in Europe but reemerged during the renaissance and got more popular in 19th 20th centuries 