藤原道長
For Japanese buildings, in 1007, Fujiwara no Michinaga built the oldest sutra mound at the summit of Kinpusen, a mountain range in Yamato Province. He did so because there was a sense of impending danger about the coming of mappō among the aristocracy, and he wanted to prepare for the coming of Maitreya and ensure that the sutras would be passed along to future generations.