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内容简介
讲了什么？
两百年前全球仅十分之一的成年人识字，今天这个数字是88%。这不是某一天发生的事件，而是人类历史上一项技能最广泛的普及。但作者揭示了一个令人不安的真相：1820年的数据来自结婚证书上的签名痕迹，而非普查；那个广为流传的"7.5亿文盲"是个没有出处的四舍五入。从古腾堡印刷术到木浆造纸，从义务教育法到经济回报，四个杠杆与一个代际时滞共同塑造了这场静默革命。
你将了解：
- 签名统计为何只能给出识字率下限
- 英国工业革命时期识字率为何停滞不前
- 今天青年与成年人5个百分点差距的真正含义
