Even though the Gelug exchanged gifts with and sent missions to the Ming court up until the <answer>1430s</answer>, the Gelug was not mentioned in the Mingshi or the Mingshi Lu. On this, historian Li Tieh-tseng says of Tsongkhapa's refusal of Ming invitations to visit the Yongle Emperor's court:
Until what year frame did the Gelug exchange gifts with the the Ming?
1430s