Sri Mahavishnu Avatar,
Sri Advaita Acharya.

Selected references on the Math's websites.

From Affectionate Guidance, Chapter 15, by Srila Bhakti Sundar Govinda Dev-Goswami Maharaj in relation to this day:

Chapter Fifteen: An Ocean of Mercy
(Web page prepared by Damayanti Devi Dasi)

Audio. Advent of Advaita Acharya. Srila B.R. Sridhar Maharaj explains: "First, Advaita Acharya descends here and then He looks around and finds that people are all apathetic to the truth, to Narayan. They are very fond of worshipping so many demigods and going on with their temporary pleasure searching, mad with that without caring for their own soul or liberation, or the life after liberation: to have a proper adjustment in Krishna consciousness. He was very much disturbed by this scenery and he prayed very fervently for the Lord to come here and to preach the Supreme Name, Nam sankirtan, by which a general amnesty and a peaceful effort may be done to start a campaign towards home. Back to God, back to home - this Nam sankirtan. And Mahaprabhu with others they also gradually come down here and begin their Nam sankirtan."
38+ minutes, 8.8 MB mp3 audio

Audio: Srila Advaita Acharya appearance day, 2003. "If Advaita Acharya Prabhu was not merciful to us, we would not get Gauranga Mahaprabhu, and if we would not get Gauranga Mahaprabhu then we could not understand properly Krishna and Krishna-lila."
Discourse for a Radio Programme by Srila Bhakti Sundar Govinda Dev-Goswami Maharaj in Kolkata. 8 February, 2003.
34+ minutes, 7.9 MB mp3 audio