plans for a diet building began in 1881. the planners hoped to finish it by 1890, when the diet would meet for the first time. they realized they could not build a very impressive building in time, so they decided to make temporary buildings at first. the first diet building was a western-style building made of wood. it burned down in 1891. another wooden building was made and finished in 1891. it burned down in 1925. a third building was made. the diet used it until 1936, when the current diet building was finished.