Past developments and advancements in healthcare have shaped medicine today. Why is knowing and understanding the past important to today's medical world and how does it help you appreciated medicine today?

For a project i need to provide a description of food (ex. salad, pizza). my last two braincells and i can't think of a food to choose so i'm asking the people of to me out - can't be a healthy food (no fruits, vegetables) - can be junk food except pizza if you could provide a description of the food you chose that would be awesome! : d