Korean cuisine, hanguk yori (한국요리; 韓國料理), or hansik (한식; 韓食), has evolved through centuries of social and political change. Ingredients and dishes vary by province. There are many significant regional dishes that have proliferated in different variations across the country in the present day. The Korean royal court cuisine once brought all of the unique regional specialties together for the royal family. Meals consumed both by the royal family and ordinary Korean citizens have been regulated by a unique culture of etiquette.