Januarius, St., a Christian who suffered martyrdom under Diocletian, and whose head is preserved in Naples with a phial containing his blood which, on certain occasions, liquefies when brought into contact with the head. Recourse is had to it on the occasion of public calamities, not without desired effects, and it is an object of worship. Festival, September 19.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Jansenists * January