It is 130 to 176 years earlier than Heian-kyo (in 794), the only Japanese-style Feng shui city (Onmyodo [way of Yin and Yang; occult divination system based on the Taoist theory of the five elements]) under Yamato kingship
ヤマト王権唯一の日本式風水（陰陽道）都市である平安京（794年）よりも130年～176年以上も早い。