premise: Nagasa District was one of the four districts created in former Awa Province on April 1, 1889. Much of the area of the district was part of the former Hanabusa Domain. At the time of its foundation, the district consisted of two towns (Kamogawa and Amatsu) and nine villages. On April 1, 1897, Nagasa District was merged into Awa District, Chiba.
hypothesis: Nagasa District was created more than 1 million seconds ago.
reason: There are 3600 seconds in an hour, 1 million seconds is 277 hours, which is only 11 days, and this district was created in 1889. it's difficult because 1 million seconds is a weird measurement.