The beginning of Azuchi-Momoyama period was after the Muromachi Shogun ate was collapsed. This period did not last for a long time like Nanbokucho Period. Nobunaga Oda, who was a general in The Age of Civil Wars and Azuchi Period, was the one who tried to unified country after the Ashikaga. The next person, who followed Nobunaga and was a vassal of him, was Hideyoshi Toyotomi. Hideyoshi was the one who united the country instead of Nobunaga since Nobunaga put an end to his own life because of a treachery of his vassal, Mitsuhide Akechi. Mituhide betrayed Nobunaga and penetrated into Honnou temple that Nobunaga stayed before he was going to war against the Mouri. This case is called The Incident Honnouji. However, Mituhide was subdued in three days after the incident. Hideyshi became a senior regent, and later in Hideyoshi's life, he tried to conquer Korea but he lost the battle. This cause a decline of Hideyoshi's political power. Azuchi Momoyama culture had less buddhism influence because of clamping down on the religion by Nobunaga and Hideyoshi. Several things from Europe were adapted by trading and missionaries; moreover, a few  or Spanish word at present time in Japan were brought in this period. The name of this period is from  name of areas. Nobunaga built Azuchi castle in Azuchi, Shiga. A peach tree was planted in the ruin of Hushimi castle that Hideyoshi lived in his later period of life, and the area started to be called Momoyama. Momo means "peach".

            Nobunaga's enemies were not only other Sengoku daimyo but also adherents of a religious sect who attended Ikkou uprising. The leader of the uprising was the leader of Hongan temple, who was Kennyo. However, Nobunaga succeeded to force people in Ishiyama hongan temple to give in and banished Kennyo from Ishiyama. His opression on Buddhism was so hard, but he supported missionaries to spread Christianity. Barrier stations were started to remove since those were obstruction of transportation and made a circulation of goods worse. Nobunaga authorized every merchant to carry on business in his castle town. Nobunaga saw missionaries when he was alive. According to a material, Nobunaga was an atheist since his father passed away even though he called monks to let them pray for his father's recovery. Therefore, he oppressed Buddhism so hard but he did not cracked down on Christianity. The missionaries brought an African with them when they saw Nobunaga and the African could speak a little Japanese. The African got Nobunaga's attention and stayed with Nobunaga. The African fought for Nobunaga when the Incident Honnouji occurred. The African was caught by Mitsuhide but he was released and returned to missionaries. However, there were no records about him after that. This was the first time that an African, who was a slave and came with missionaries, appeared in Japanese history.

            On the other hand, Hideyoshi started to opress on missionaries since Christianity became burdensome for Hideyoshi's plan even though he authorized missionaries to propagate the Christianity. He cracked down on feudal lord who were Christian, and then he deport missionaries from Japan. Trading with European countries were still kept , so the missionaries could come with trader and could spread the religion. In 1587A.D., Hideyoshi sent a large army to Korea and occupied some area. Hideyoshi wanted to take the place of Ming Dynasty since the dinasty was getting decline, so he wanted to occupy the vast land in China. Therefore, Hideyoshi wanted Korea to be under his occupation to ensure a way to get to Ming Dynasty. However, he lost a battle and gained nothing. His plan resulted in torturing people in Korea and Japanese army since the army could barely get food and clothes after Hideyoshi lost the war. After Hideyoshi passed away, authority of Ieyasu Tokugawa became stronger, and the war of Sekigahara between Toyotomi and Tokugawa was caused by a struggle for power. In 1603A.D., the Edo Shogun ate was established by Ieyasu and Edo period began.