Based on evidence of selection against alpha-male behavior in the earliest Homo sapiens, I suggest that by 300,000 ya (years ago) language would have been sufficiently sophisticated to contribute to peacemaking between groups. Language also influenced the social landscape of peace and war, and groups' ability to form coalitions.

中文翻译：

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语言可能在 10 万年前促进了和平

根据最早的智人对雄性领袖行为的选择证据，我认为到 30 万年前，语言已经足够复杂，足以促进群体之间的和平。语言还影响和平与战争的社会格局，以及群体结成联盟的能力。