The reign of this sovereign (97-30 B.C.) is the first eventful period since the death of Jimmu. It is memorable for the reorganization of religious rites; for the extension of the effective sway of the Throne, and for the encouragement of agriculture. When the first Emperor installed the sacred insignia in the palace where he himself dwelt, the instinct of filial piety and the principle of ancestor worship were scarcely distinguishable. But as time passed and as the age of the Kami became more remote, a feeling of awe began to pervade the rites more strongly than a sense of family affection, and the idea of residing and worshipping in the same place assumed a character of sacrilege. This may have been directly suggested by a pestilence which, decimating the nation, was interpreted as implying the need of greater purity. A replica of the sacred mirror was manufactured, and the grandson of the great worker in metal Mahitotsu, the "One-eyed" was ordered to forge an imitation of the sacred sword. These imitations, together with the sacred jewel, were kept in the palace, but the originals were transferred to Kasanui in Yamato, where a shrine for the worship of the Sun goddess had been built. But though the pestilence was stayed, it brought an aftermath of lawlessness and produced much unrest in the regions remote from Yamato. Sujin therefore organized a great military movement, the campaign of the Shido shogun, or "Generalissimo of the four Circuits."* *The term "do" indicates a group of provinces. The leaders chosen for this task were all members of the Imperial family--a great-uncle, an uncle, a younger brother, and a first cousin of the Emperor--and the fields of operation assigned to them were: first, to the west along the northern shore of the Inland Sea; secondly, to the northwest into Tamba, Tango, and Tajima; thirdly, to the north along the sea of Japan, and finally to the east along the route now known as the Tokaido. No attempt is made by the writers of either the Records or the Chronicles to describe the preparations for this extensive campaign. Tradition seems to have preserved the bare fact only.