人猿 じんえん同祖 どうそ せつではありませんでした
jin'endōso setsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 人猿同祖説

1. Was not the theory of human-ape common ancestry.

Past/Perfective
Negative
Polite
Formal Register