The Wolhanian mission, an archaeological endeavor, journeyed to Yavin 4, a moon, prior to 19 BBY. Doctor Raygar, an Argazdan scientist, participated in this exploration. Subsequently, Raygar developed an all-consuming desire to find mystical objects, resulting in a decline in his standing among academics.
This group examined the Massassi remains and discovered the Massassi frieze, an age-old Sith Chalice, and other relics connected to the Sith. The frieze and the chalice eventually found their way into the personal art collection of Supreme Chancellor Palpatine sometime before 19 BBY.