Crispin and his brother Crispinian were Christians who were martyred during the persecution by the Emperor Maximian in Rome. They were humble men who preached Good News to their neighbors during the day and made shoes at night in order to earn their living. Their sterling example provided a model of courage and persistence against overwhelming odds for the generations of Christians who came after them. This day has therefore been celebrated as St. Crispin's Day ever since.
Of course, for many of us St. Crispin's Day does not so much bring to mind Crispin and his brother as it does the Hundred Years War. It was on this day in 1415, during that calamitous war, that England’s King Henry V defeated the overwhelming force of French Army in the fields of Agincourt inspiring Shakespeare’s famous monologue:
"If we are marked to die, we are enough to do our country loss; and if to live, the fewer the men, the greater share of honor. God’s will, I pray thee, wish not one man more. This story shall the good man teach his son, and Crispin Crispian shall ne’er go by from this day to the ending of the world but we in it shall be remembered. We few, we happy few, we band of brothers. For he today that sheds his blood with me shall be my brother; be he ne’er so vile, this day shall gentle his condition. And gentlemen in England now abed shall think themselves accursed they were not here, and hold their manhoods cheap whiles any speaks that fought with us on St. Crispin’s Day."