Aztec's "Curse of One Rabbit"

Aztec's "Curse of One Rabbit" associates the first year (one rabbit) of the 52-year calendar cycle with famine and catastrophe. It is backed by a study indicating a real climatic origin. Aztec codices and climate-sensitive tree-ring records reveal at least 13 drought years in central Mexico during the prehispanic and early colonial periods, confirming the folklore about the infamous "famine of One Rabbit" in 1454. The statistical significance of the relationship between severe drought and the year preceding One Rabbit suggests a genuine climatic basis for the curse.