Protestant and secular opinion on the encyclical was almost wholly disapproving.
From the time.com
The encyclical did not break new ground, but that is very much Benedict's style.
From the washingtonpost.com
Benedict's first encyclical extended a heartfelt plea for an end to hostilities.
From the en.wikipedia.org
In the centennial encyclical, Pope John Paul reiterated his frequent admonitions.
From the time.com
Pope Paul VI was so crushed by its reception he never wrote another encyclical.
From the dailyherald.com
In the encyclical Ad caeli reginam he promulgated the feast, Queenship of Mary.
From the en.wikipedia.org
The encyclical Divino Afflante Spiritu opened the doors for biblical research.
From the en.wikipedia.org
Last week the first copy of a new papal encyclical on the subject became available.
From the time.com
Pius XI condemned the Mexican government again in his 1932 encyclical Acerba Animi.
From the en.wikipedia.org
More examples
A letter from the pope sent to all Roman Catholic bishops throughout the world
Intended for wide distribution; "an encyclical letter"
An encyclical was originally a circular letter sent to all the churches of a particular area in the ancient Catholic Church. At that time, the word could be used for a letter sent out by any bishop. ...
(Gr. "moving in a circle"; "circulating"). A letter by the head of an Orthodox jurisdiction (Archbishop or Patriarch) to those under his spiritual authority. The content of such a letter may vary but it must refer to specific administrative or spiritual topics concerning the faithful.
An official statement by the papacy. Individual encyclicals lack titles in the modern sense, and they are normally refered to by their opening words (in Latin).
[Religion]: The Pope's letters to his bishops (a.k.a. Papal Bull). Recycled Definition: That same old stuff you stopped listening to when you were ten years old and encounter over and over again from teachers, politicians, bosses, relatives, spouses, etc. as your life progresses. ...
Refers to a letter which is meant for a general audience.
A pastoral letter addressed by the Pope to the whole Church.
A document which the Pope sends to the bishops dealing with matters related to the general welfare of the Catholic Church. They often contain pronouncements about matters of faith and morals. Encyclicals which deal with especially important matters are called "papal bulls".