If no 年號 is used, the usage of the lunar calendar is almost obligatory, as the number of a reign without a reference to the era might be very ambiguous and confusing. As expected we see a sharp drop of the usage of the Chinese sexagenary calendar, which represents also the appropriation of time through the modern and industrialized state. 如果沒有使用年號，那麼利用農曆年記法（天干地支）就幾乎為必要。在世代交替的政局下沒有使用一個紀錄的基準將，年份的表示將會非常混亂及模糊。正如本團隊所預期地，使用農曆年記法的墓碑急遽下降，這也顯現了在現代化及工業化的時間行走中，對於農曆記年法使用的取代。