We really do not know who the first black saint was. In the early Church there were a number of African saints, even popes. However, no mention is made of their race. They could have been black, dark skinned or caucasian.
In recent centuries there is St. Martin de Porres from Peru who was black.
Monica was not black.
There was no black pope in the first century. The first pope from Africa was Pope Saint Victor (189-199) but there is no indication that he was black.
Saint Paul is the best known.
He is best known as the first Christian martyr.
She is not known as a saint.
The date is not known but it must have occurred in the first decade of the first century AD.
Black Saint - album - was created in 1975.
The birthday of Saint Thomas the Apostle is not known.
She was known as the 'Saint of the Gutters.'
Saint Marher, also known as Saint Marcella, was an early Christian saint who lived in the 4th century. She was a noblewoman known for her devotion to charitable works and her support of the Christian community in Rome. She is recognized as a saint in the Catholic and Eastern Orthodox Churches.
Saint Benedict is known as the 'Father of Western Monasticism.'
Saint Paul was formerly known as Saul of Tarsus.