theories of history, n.Definitions

Theories of history (n.) like ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Spengler's mistake unrepeatable events for natural processes that come round again.