古王国, or the "Ancient Kingdom," refers to historical states that existed in various regions, often characterized by their unique cultures, governance, and social structures. These kingdoms played significant roles in the development of civilization, contributing to advancements in art, architecture, and trade. Many ancient kingdoms, such as the 埃及王国 (Egyptian Kingdom) and the 美索不达米亚 (Mesopotamia), are known for their monumental structures and rich histories. They often engaged in complex interactions with neighboring states, influencing each other's cultures and economies through trade and warfare.