Who is Mother Teresa?
Mother Teresa was was an Albanian-Indian Catholic nun and the founder of the Missionaries of Charity. She was born in 1910 and died in September of 1997.  When she was 18,  moved to Ireland and then to India, where she lived most of her life.  

The Missionaries of charity manages homes for people who are dying of HIV/AIDS, leprosy, and tuberculosis. They also run soup kitchens, dispensaries, mobile clinics, children's and family counseling programs, as well as orphanages and schools. Members of this congregation take vows of chastity, poverty, and obedience and also profess a fourth vow: to give "wholehearted free service to the poorest of the poor."  Pope Francis canonized her St. Teresa of Calcutta on September 4th, 2016 in St. Peter's Square in Vatican City.