Ekiben
Ekiben are a specific type of bento boxed meals, sold on trains and at train stations in Japan. They come with disposable chopsticks (when necessary) or spoons. Ekiben containers can be made from plastic, wood, or ceramic. Many train stations have become famous for their ekiben made from local food specialties (tokusanhin). Ekiben were first sold in railway stations in the late 19th century, and developed at a time when meals on train were necessary during a long train journey. The popularity of ekiben reached a peak in the 1980s, but declined as air travel became more affordable and trains became faster. However, numerous types of ekiben can still be purchased at stands in the station, on the platform, or on the train itself, some of which may be presented in unique containers that can serve as souvenirs or collectables. Despite undergoing a decline in popularity in the 1990s and 2000s, ekiben remains popular among travelers, and gained popularity on the Shinkansen ever since the dining car service that replaced it was discontinued when Japan's asset price bubble burst in the early 1990s, leading to the Lost Decades. The word ekiben comes from "eki", meaning railway station, and "ben", which is short for bento (box meal). Before the introduction of rail travel, travellers would prepare their own meal or buy meals kept in wooden bento boxes sold in tea houses. During the intermission of kabuki theatre performances, makunouchi-bento ("between-acts box lunches") were also sold. These would evolve into ekiben with the coming of railways. The first sale of ekiben is generally believed to have been at the Utsunomiya Station in 1885 which opened when the Nihon Tetsudo line linked the station to Ueno Station in Tokyo. In the beginning the ekiben offered were simple fare, the ekiben offered at Utsunomiya Station were simply onigiri (rice balls) wrapped in young bamboo leaves. The idea of selling ekiben quickly spread to railway stations around the country, and in 1888, the first standard ekiben with rice and a few side dishes were sold at Himeji Station.
Source: Wikipedia