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Beatified Mother Teresa
Forty years ago today, Mother Teresa was awarded the Nobel Peace Prize, after dedicating her life to helping others.
She looked after those in sickness and poverty in the Indian city of Kolkata (Calcutta).
In September 2016, it was announced that the Roman Catholic nun was being made a saint.
Read on to find out more about her. https://www.bbc.co.uk/newsround/50075153