Sendai (仙台市, Sendai-shi) is the capital city of Miyagi Prefecture, Japan, and the largest city in the Tōhoku region, and the second largest city north of Tokyo. In 2010, the city had a population of one million, and was one of Japan's 20 designated cities. The city was founded in 1600 by the daimyo Date Masamune, and is nicknamed the City of Trees (杜の都, Mori no Miyako); there are about 60 zelkova trees on Jōzenji Street (定禅寺通, Jōzenji dōri) and Aoba Street (青葉通, Aoba dōri).
In the summer, the Sendai Tanabata Festival, the largest Tanabata festival in Japan, is held. In winter, the trees are decorated with thousands of lights for the Pageant of Starlight (光のページェント), lasting through most of December.
On March 11, 2011, coastal areas of the city suffered catastrophic damage from a magnitude 9.0 offshore earthquake which triggered a destructive tsunami.
Although the Sendai area was inhabited as early as 20,000 years ago, the history of Sendai as a city begins from 1600, when the daimyo Date Masamune relocated to Sendai. Masamune was not happy with his previous stronghold, Iwadeyama. Iwadeyama was located to the north of his territories and was also difficult to access from Edo (modern-day Tokyo). Sendai was an ideal location, being in the centre of Masamune's newly defined territories, upon a major road from Edo, and near the sea. Tokugawa Ieyasu gave Masamune permission to build a new castle in Aoba-yama (Mount Aoba), Sendai after the Battle of Sekigahara. The previous ruler of the Sendai area had used a castle located on Aobayama.