Historical Events in Church Annals for April 15:
Death of Pope Sergius III, the 119th successor of Peter and the Pope who rebuilt the Lateran. He was the first to wear the tiara.
The Battle of Formigny where the French defeat the English in the 100 year war.
Birth of Master Painter Leonardo da Vinci who would go on to paint some memorable religious scenes, most specifically "The Last Supper."
The English Clergy is forced to submit to Henry VIII, King of England who bolted from Holy Mother Church.
At 2:20 a.m. the S.S. Titanic sinks into the depths of the Atlantic after striking an iceberg, taking with it many Irish Catholics who had sailed in steerage for America seeking a better life.