The image is a slide from a presentation about the development of Iron Culture. The slide has a beige background and black text. The title of the slide is "Development of Iron Cultures" and it mentions that around the turn of the Common Era, iron technology from Han China was introduced via Lelang and various iron im-plements began to be produced, including weapons, farming tools, and horse equipment. By the 1st century CE, areas in southern Korean Peninsula were developing iron technology in various forms and exporting iron commodities to neigh-boring regions such as Japan, Lelang, and Daifang. The use of iron implements brought about tremendous changes in the cultural, economic, and sociological environment, and played a crucial role in the development in ancient states.