What was the miracle of St. John Neumann?

In 1923 an 11-year-old girl was cured of terminal peritonitis after praying to St. John Neumann (1811–60) for his intercession. A second miracle was confirmed by the Roman Catholic Church after the recovery in 1963 of a young man suffering from terminal bone cancer. He had visited Neumann’s tomb in Philadelphia, where he came into contact with a relic of the bishop. The healing of a 19-year-old man in Philadelphia who was severely injured in an automobile accident (1949) is also credited to Neumann’s intercession; the man’s recovery was said to have occurred after a portion of Neumann’s cassock was placed upon him.