Alberto Pizzoli
Cardinal Crescenzio Sepe displays the ampulla containing the blood of San Gennaro (St. Januarius) on March 21, 2015, in Naples.

St. Januarius (San Gennaro) will have much attention on Sept. 19 when people in Naples, Italy, wait anxiously to see whether his blood will liquefy. At the same time, 4,000 miles away, the San Gennaro festivities are underway in New York City’s Little Italy.