History of education
Although there are more than 40,000 Chinese characters in written Chinese, many are rarely used. Studies have shown that full literacy in the Chinese language requires a knowledge of only between three and four thousand characters.
Kangxi Dictionary
The supplemented dictionary contains 47,035 character entries, plus 1,995 graphic variants, giving a total of 49,030 different characters. They are grouped under the 214 radicals and arranged by the number of additional strokes in the character. Although these 214 radicals were first used in the "Zihui", due to the popularity of the "Kangxi Dictionary" they are known as Kangxi radicals and remain in modern usage as a method to categorize traditional Chinese characters.