Theodor Mommsen ring sajeroning History of Romeonyané ngaptiang mangdané  Roma punika runtuh, taler Kerajaan Romawi Barat ring warsa 476M punika raris ngeniang indik seseleh kawéntenan biologis saking "katurunan", "panglimbak", "nglingsirang", "karuntuhan", miwah sané  "ngawinang rusak".
Theodor Mommsen in his History of Rome suggested Rome collapsed with the collapse of the Western Roman Empire in 476 CE and he also tended towards a biological analogy of "genesis", "growth", "senescence", "collapse" and "decay".