Since this month, Google Fonts is supporting Korean, an Asiatic language spoken by around 80 million persons. Google says that official support was introduced this month “after devising a more efficient means of serving Chinese, Japanese, and Korean (CJK) font files, which have very large character sets and file sizes.”
Google Fonts team says that the complexity of Hangeul is much higher than the Latin. A typical full Korean font hovers around 4Mb, whereas even fairly extensive Latin fonts rarely exceed 250Kb.
At the beginning of the month, Google Fonts had already 23 Korean font families.