Han poetry as a style of poetry resulted in significant poems which are still preserved today, and which have their origin associated with the Han dynasty era of China, 206 BC – 220 AD, including the Wang Mang interregnum (9–23 AD). The final years at the end of the Han era (known by the name Jian'an, 196–220) often receive special handling for purposes of literary analysis because, among other things, the poetry and culture of this period is less than typical of the Han period, and has important characteristics of its own, or it shares literary aspects with the subsequent Three Kingdoms period. This poetry reflects one of the poetry world's more important flowerings, as well as being a special period in Classical Chinese poetry, particularly in regard to the development of the quasipoetic