The Mother Teresa of Calcutta Center is a non-profit organization established and directed by the religious family founded by Blessed Teresa of Calcutta, the Missionaries of Charity.
The Center’s aim is to serve as a centralized and authoritative source of information on Mother Teresa, to facilitate the spread of authentic devotion to her, and to safeguard her words and image from misuse or abuse. — http://www.motherteresa.org/ .
See also Canonization of Mother Teresa
Feast day September 5