Operated by the Sisters of the Magdalene Order, the laundries were virtual slave labor camps for generations of young girls thought to be unfit to live in Irish society.

Girls who had become pregnant, even from rape, girls who were illegitimate, or orphaned, or just plain simple-minded, girls who were too pretty and therefore in "moral danger" all ran the risk of being locked up and put to work, without pay, in profit-making, convent laundries, to "wash away their sins."

They were completely cut off from their families, and many lost touch with them forever.

Stripped of their identities, the girls were given numbers instead of names. They were forbidden to speak, except to pray. If they broke any rule or tried to escape, the nuns beat them over the head with heavy iron keys, put them into solitary confinement or shipped them off to a mental hospital.

Over a period of 150 years, an estimated 30,000 women were forced into this brutal penance, carried out in secret, behind high convent walls.

Towards the end of the 20th century, the laundries began to close, as the power of the Church in Ireland diminished and as social attitudes became less puritanical. Incredibly, the last Magdalene laundry to shut down was in 1996.