UniHan inputs over 75,000 Han characters, which occupied more than half the storage space of the Unicode table, that have been shared by Chinese, Japanese, Korean, and Vietnamese languages, by hand writing them in.
There are more than 75,000 characters coded in version 6.0.0 in year 2010. UniHan is the CJKV characters section which occupied more than half the storage space of the Unicode Table. The Chinese, Japanese, Korean and Vietnamese shared the Han characters for naming for more than thousand years. 
