Sengoku period - online puzzles

The Sengoku period (戦国時代, Sengoku Jidai, "Age of Warring States"; c. 1467 – c. 1603) is a period in Japanese history marked by social upheaval, political intrigue and near-constant military conflict. Japanese historians named it after the otherwise unrelated Warring States period in China. It was initiated by the Ōnin War, which collapsed the Japanese feudal system under the Ashikaga shogunate, and came to an end when the system was re-established under the Tokugawa shogunate by Tokugawa Ieyasu.