Japanese armor changed with warfare, mobility, firearms, and peacetime ceremony.
EARLY 14TH–EARLY 15TH CENTURY
Ō-YOROI
Historical context: Minamoto no Yoritomo established the Kamakura shogunate more than a century before this armor was made. The Met does not associate this object with him.
CA. 1550
SENGOKU-ERA DŌ-MARU
Historical context: Oda Nobunaga was active during the 16th-century Sengoku period. The Met dates this dō-maru armor to about 1550 and does not associate it with him.
18TH CENTURY
EDO-PERIOD YOROI
Historical context: Tokugawa Ieyasu established the Tokugawa shogunate in 1603. This armor was made in the 18th century, after his lifetime, and the Met does not associate it with him.