Historian reveals horror of mass grave for Irish babies born out of wedlock

In a town in western Ireland, where castle ruins pepper green landscapes, there is a stone wall that once surrounded a place called The Home.

Between 1925 and 1961, thousands of "fallen women" and their illegitimate children passed through The Home, run by the Bon Secours nuns in Tuam.

Many of the women, after paying a penance of indentured servitude for their out-of-wedlock pregnancy, left The Home for work and lives in other parts of Ireland and beyond. Some of their children were not so fortunate.

More than five decades after The Home was closed and destroyed - a housing development and children's playground now stands there - what happened to nearly 800 of those abandoned children has now emerged. Their bodies were piled into a massive septic tank at the back of the structure and forgotten, with neither gravestones nor coffins.

"The bones are still there," local historian Catherine Corless, who uncovered the origins of the mass grave in a batch of never-before-released documents, said. "The children who died in The Home, this was them."

The grim findings, which are being investigated by police, provide a glimpse into a particularly dark time for unmarried pregnant women in Ireland, where societal and religious mores stigmatised them.