From her earliest years she believed in Jesus.
Mother Teresa opened the first Home for the Dying in Calcutta in 1952.
Calcutta
Teresa was the name she chose upon becoming a nun. The title 'Mother' was a title given by the Sisters of Loreto to all nuns in the order.
In a open field
She founded the Missionaries of Charity.
Mother Teresa did not go to school. Girls were not allowed to attend school in Albania at the time. She was home schooled by her parents.
Yes, she started the Missionaries of Charity.
Mother Teresa did not start a company, she founded the Missionaries of Charity who work in a variety of charitable situations including orphanages.
She started helping the unwanted , unloved and uncared peoples in India.
Mother Teresa started it, now go look up the information yourself
She entered the convent at the age of 18 - about the year 1928.
Mother Teresa did not start a 'business' but a religious order called the Missionaries of Charity. It received approval of the pope in 1950. It was started originally to provide hospice care for the poor left to die on the streets of Calcutta but expanded to help in many other areas as well.