The city of Sendai, known today as the largest metropolis in the Tohoku region, possesses a rich history closely tied to one of Japan's most powerful daimyo (feudal lords).
Although settlements on the territory of modern Sendai existed more than 20,000 years ago, the history of the city in its current form began in 1600. The founder of Sendai is considered to be the famous daimyo Date Masamune, also known as the "One-Eyed Dragon". After receiving permission from Shogun Tokugawa Ieyasu following the decisive Battle of Sekigahara, Masamune began the construction of Aoba Castle on a hill in December 1600, and in 1601 commenced the planning and development of the castle town. This moment marked the official birth of Sendai.
The city's development was driven by several strategic reasons. Firstly, Sendai was located in the centre of the vast domains of the Date clan, on the main road connecting the northern lands with Edo (modern Tokyo), and had access to the sea, which facilitated trade. Secondly, the city became the capital of the Sendai Domain, one of the wealthiest and most influential in the country. Date Masamune transformed it into a powerful administrative and military centre, consolidating his power in the region. Finally, a solid economic foundation for prosperity was created by fertile plains, which provided a rich harvest of rice, and proximity to the ocean, giving access to abundant fish resources.
From its very foundation, Sendai acquired unique features. Date Masamune encouraged culture and crafts, which was reflected in the magnificent decoration of shrines, such as Osaki Hachimangu, built in 1607 and recognized as a National Treasure of Japan. The city also became famous as the "City of Trees" (Mori no Miyako), as the Date clan obliged residents to plant trees on their estates, creating a unique green landscape. In the early Edo period, Sendai was so lively that, according to a Spanish ambassador, it surpassed even Edo in terms of the flow of people. This speaks to its high economic and cultural significance already in the first decades of its existence.