I think The Last Supper that Jesus had with his 12 disciples certainly changed the course of world events.

I think that the most important, peaceful thing people can do is to "break bread" together at a meal.  No matter how opulant or meager the servings, it still is a peaceful sharing time to celebrate fellowship.

In the news lately you saw where the President had a "beer" summit with the Harvard professor and the Cambridge police officer. This event will go down as a historic event. Food and drink always plays a part in most major historical events.