The Ichihara History Museum in Ichihara City, Chiba Prefecture, will hold a special exhibition titled "Dating Kofun by Pottery - Sueki and Haji Ware from Inaridai No. 1 Kofun" from July 18 (Sat), Reiwa 8 (2026) to September 23 (Wed, holiday). The "King's Gift Iron Sword" excavated from Inaridai No. 1 Kofun. The most important information for understanding the figure of the "King" is its attribution period, but unfortunately, the inscription does not contain characters that directly indicate the date, such as the sexagenary cycle or era name. Here, the shape of the pottery found together provides a hint for considering the age of the kofun. This special exhibition will display Sueki and Haji ware excavated from Inaridai No. 1 Kofun and surrounding sites, and explain the changes in pottery forms during the 5th century. Exhibition Overview Period July 18 (Sat) to September 23 (Wed, holiday) *Closed on Mondays. If a holiday falls on a Monday, the museum will be closed the following weekday. Venue Ichihara History Museum (1489 Nomitsu, Ichihara City, Chiba Prefecture) Admission Fees Individual: General ¥300, High School Students ¥200 Group: General ¥200, High School Students ¥100 *Includes admission to the concurrently held special exhibition "Showa Era Schools and War" and the permanent exhibition. View Details Sueki and Haji Ware Excavated from Inaridai No. 1 Kofun Lectures and Exhibition Guided Tours Overview of Ichihara Local History Learning Lecture "Dating Kofun by Pottery" This is a local history learning lecture related to the special exhibition. Date and Time: July 26 (Sun), 10:00 AM - 12:00 PM Capacity: First 70 visitors on the day. Reception begins at 9:30 AM. Exhibition Guided Tour An exhibition guided tour by a curator from the Ichihara History Museum. Date and Time: Every Sunday during the special exhibition period, 11:45 AM - 12:15 PM Special Experience: "Making Sueki-style Pottery" Around the end of the 4th century, many people migrated to the Japanese ar