By Andrés Henríquez, Catholic News Agency - On July 25, 1968, St. Paul VI published Humanae Vitae, an encyclical on the regulation of birth and the dangers involved in the use of artificial contraceptive methods and their imposition as state policy. At the time the encyclical was rejected by many even within the Catholic Church... The document, published at the beginning of the sexual revolution, continues to draw mixed reactions, which is why it’s necessary to take a closer look at five key points that allow us to better understand the encyclical, the context in which it was written, its prophetic message, and its validity even today.