FreeSerif

GNU FreeFont (also known as Free UCS Outline Fonts) is a family of free OpenType, TrueType, and WOFF vector fonts that implement as many characters from the Universal Character Set (UCS) as possible. The project was initiated in 2002 by Primož Peterlin and is currently maintained by Steve White. The family includes three fonts: FreeMono, FreeSans, and FreeSerif, each in four styles.