Feast of St. Januarius

Taken from Catholic Online:

St. Januarius was born in Italy and was bishop of Benevento during the Emperor Diocletion persecution. Bishop Januarius went to visit two deacons and two laymen in prison. He was then also imprison along with his deacon and lector. They were thrown to the wild beasts, but when the animals did not attack them, they were beheaded. What is believed to be Januarius' blood is kept in Naples, as a relic. It liquifies and bubbles when exposed in the cathedral. Scientists have not been able to explain this miracle to date. St. Januarius lived and died around 305 A.D. and his feast day is September 19th.

Miracle of the Liquefaction of His Blood:

Saint Januarius is famous for the miracle of the annual liquefaction of his blood, which, according to legend, was saved by a woman called Eusebia just after the saint's death. Thousands of people assemble to witness this event in Naples Cathedral three times a year: on September 19 (Saint Januarius day, to commemorate his martyrdom), on December 16 (to celebrate his patronage of both Naples and of the archdiocese), and on the Saturday before the first Sunday of May (to commemorate the reunification of his relics). Although the city of Naples became known as urbs sanguinum, the miracle is not a unique phenomenon. Other examples include Saint Patricia, blood said to belong to Saint John the Baptist in the monastery of San Gregorio Armeno, and that of Saint Pantaleon which liquifies in nearby Ravello. The liquefication of coagulated blood is therefore peculiar to the region of Campania and virtually unheard of elsewhere.  (Source: Wikipedia)

Saint Alphonsus Liguori wrote regarding Saint Januarius:

"The Neapolitans honor this saint as the principal patron of their city and nation, and the Lord himself has continued to honor him, by allowing many miracles to be wrought through his intercession, particularly when the frightful eruptions of Mount Vesuvius have threatened the city of Naples with utter destruction. While the relics of St. Januarius were being brought in procession towards this terrific volcano, the torrents of lava and liquid fire which it emitted have ceased, or turned their course from the city. But the most stupendous miracle, and that which is greatly celebrated in the church, is the liquefying and boiling up of this blessed martyr's blood whenever the vials are brought in sight of his head. This miracle is renewed many times in the year, in presence of all who desire to witness it; yet some heretics have endeavored to throw a doubt upon its genuineness, by frivolous and incoherent explanations; but no one can deny the effect to be miraculous, unless he be prepared to question the evidence of his senses."

John Henry Cardinal Newman also attested to the veracity of the miracle of liquefaction:

"I think it impossible to withstand the evidence which is brought for the liquefaction of the blood of St. Januarius at Naples and for the motion of the eyes in the pictures of the Madonna in the Papal States.

Collect:

We are made happy, O God, by the annual feast of Your holy martyrs Januarius and his companions. As we joyously remember the merits of these saints, may we also be inspired by their example. Through our Lord . . .