Non-nengō period The initial years of Monmu's reign are not linked by scholars to any era or nengō.Titsingh, p. 60. The Taika era innovation of naming time periods – nengō – languished until Monmu reasserted an imperial right by proclaiming the commencement of Taihō in 701. See Japanese era name – "Non-nengo periods" See Monmu period (697–701).
noN-neNgō perIod the INItiaL yeArs of monmu's reiGN arE Not LInked By sCholArS tO aNy era or nEngŌ.tITsinGH, P. 60. tHe tAika era inNovAtion Of NaMing time PerIoDs – nengō – laNGuisheD untiL Monmu ReAsserted an iMPeriAL riGHt by proclaimiNg thE commencemeNt of tAihŌ in 701. sEe japanese Era namE – "non-nEngO perIoDs" sEe moNMu periOd (697–701).