Culture
A hero's culture describes the beliefs, customs, values, and way of life held by the community in which they were raised. This community provides life experiences that give a character some of their game statistics. Even if a hero doesn't share their culture's values, those values shaped their early development and way of life. In fact, some people become heroes primarily from the rejection of the ways of their culture.
For our purposes, a hero's culture represents people, not a place. Yes, you might have grown up in the great city of Capital, but your culture is more specific than that. One hero's culture might be House Alvaro, a noble house in Capital where they were raised. Another's culture could be a group or organization that moves around, such as a band of pirates or a secret order of sorcerers sworn to protect books of fell magic. It helps to get specific when thinking about your culture, and working with the four aspects of a culture can help you do that: language, environment, organization, and upbringing.