The following three capitals have overlapping and rather confusing dates:
−
*Kuni (740-742?)
+
**Kuni (740-742?)
−
*Shigaraki (742?-745)
+
**Shigaraki (742?-745)
−
*Naniwa (745?)
+
**Naniwa (745?)
−
*Heijô (now Nara) (745-?)
+
*Heijô (now Nara) (745-784)
*Nagaoka (784-794)
*Nagaoka (784-794)
−
*Heian (794-1868)
+
*Heian (794-1868)
+
+
Due to archaeological debates and instances of dual capitals, the above list is not complete or yet trustworthy. Naniwa was capital more times than is listed.