日本绳文时代出土的陶器上就有纹样出现，随着宫廷贵族和武士的大量使用，纹样渐变为家徽并传承至今。
With the wide use of heraldries by the royal peers and warriors, heraldries gradually became the family heraldry till now.
绳文时代（10 000 -公元前300）后期的特征是被称为dogu的醒目的粘土小雕像，它们大多描绘女性，可能具有生育符号的功能。
Characteristic of the late Jomon period (10, 000–300 BCE) are the striking clay figurines known as dogu, which mostly depict human females and may have functioned as fertility symbols.
麦格劳·希尔公司没有对评论的请求给出回应，但其首席执行官戴维·莱文在8月份告诉《金融时报》：“在高等教育领域，印刷教材的时代已经结束。”
McGraw Hill didn't respond to a request for comment, but its CEO David Levin told the Financial Times in August that "in higher education, the era of the printed textbook is now over."
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