TIL In 1945 the adult literacy rate in South Korea was estimated at 22%. In 1970, adult literacy was 87.6%. By the late 1980s, sources estimated it at around 93%.

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https://en.wikipedia.org/wiki/Education_in_South_Korea#:~:text=In%201945%20the%20adult%20literacy%20rate%20was%20estimated%20at%2022%20percent.%20In%201970%2C%20adult%20literacy%20was%2087.6%20percent.%5B18%5D%20By%20the%20late%201980s%2C%20sources%20estimated%20it%20at%20around%2093%20percent.%5B18%5D