Kofun period
During the earlier part of the Kofun period (later 3rd century AD) the only earthenware "haniwa" were cylindrical; however, toward the early 4th century AD, shield and other tool-shaped "haniwa" started to appear. Additionally, during the middle Kofun period (mid-5th century AD) shrine maiden, horse, dog, and other animal-shaped "haniwa" were introduced. As the practice of ceremonial burial mounds declined in the mid-6th century AD, "haniwa" became rarer in the Kinai region; however, "haniwa" were made in abundance in the Kantō region.