I want to know the answer to the following question:
What was being celebrated in the Catholic calendar when the Eccelsiam suam was given in 1964?
All the background I'm provided with is that "Ecclesiam suam was given at St. Peter's, Rome, on the Feast of the Transfiguration, 6 August 1964, the second year of his Pontificate.". Is that enough to answer the question?