By 3000 BC, the horse was completely domesticated, and by 2000 BC, a sharp increase occurred in the number of horse bones found in human settlements in northwestern Europe, indicating the spread of domesticated horses throughout the continent.
直到公元前 3000 年，马才被完全驯化，到公元前 2000 年，在欧洲西北部的人类居住区发现的马骨数量剧增，表明驯化的马遍布整个欧洲大陆。