Today is a very ancient feast day in the Latin rite, the memorial of St. Agnes, who was martyred probably in the late 3rd century or early 4th century. She is lauded by St. Ambrose shortly thereafter for her youth (12 years old at the time of her death) and for her heroic witness to chastity and faith.
Agnes means “lamb” so on this day every year, the Holy Father blesses two lambs, the fleece of which will be used to make the pallia that are placed on the shoulders of all archbishops in the world.
A wonderful saint, and a wonderful ancient tradition in our Church!