� The city is located within Minuchi, Takai, Sarashina, and Hanishina Districts in the ancient Shinano Province.
� Zenk?-ji relocated from the current city of Iida (642). Afterwards, the town of Monzen becomes one of the motel towns of Hokkoku Kaid?.
� The Battles of Kawanakajima were held, where Shigen Takeda and Kenshin Uesugi fought.
� Inu-no-Mansui (1742), the water level reached at 6.4 m (21 ft) at Akanuma (near the border with the former town Toyono)
� Due to Zenko-ji Earthquake (May 8, 1847), nearly 10,000 people died (including the other disasters in Iiyama)
� Gained city status (1897)
� The Matsushiro Underground Imperial Headquarters was built (Started in 1944, but cancelled in 1945 due to the end of war)
� Biggest mergers of the Showa Era I (1954)
� Due to the flooding of Chikuma River (1959), 71 people are dead or missing and 20,000 homes were flooded
� Biggest mergers of the Showa Era II (1966)
� Matsushiro Earthquake
� Due to Landslides 1985), 27 people died and 60 homes were destroyed or near-destroyed
� Hosted the 1998 Winter Olympics and the 1998 Winter Paralympics (1998)
� Became a core city (1999)
� Due to the Biggest Mergers in Heisei Era, the city absorbed the municipalities of the town of Toyono, and the village of Togakushi, and Kinasa (from Kamiminochi District), and the village of ?oka (from Sarashina District).
� Hosted the 2005 Special Olympics World Winter Games.
Municipal timeline
� April 1, 1897: The first city of Nagano was founded. (Nagano became the first city founded in Nagano
