--- title: Pope Francis and the Other Encyclical You Should Know About description: He wrote an 1891 encyclical about the social problems of his day canonical: https://time.com/3924637/pope-francis-encyclical-history/ author: Lily Rothman article:opinion: false article:content_tier: free article:published_time: 2015-06-18T13:30:42.000Z article:modified_time: 2026-08-19T07:42:30.226Z article:section: History og:title: Pope Francis and the Other Encyclical You Should Know About og:description: He wrote the other encyclical you need to know about og:url: https://time.com/3924637/pope-francis-encyclical-history/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt61ef1bb83f59dd74/698854ede20a8733bca8be04/pope.jpeg?branch=production&width=659&quality=75&auto=webp&crop=16:9 og:image:width: 659 og:image:height: 371 og:image:alt: Portrait of Pope Leo XIII og:type: article twitter:card: summary_large_image twitter:title: Pope Francis and the Other Encyclical You Should Know About twitter:description: He wrote the other encyclical you need to know about twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt61ef1bb83f59dd74/698854ede20a8733bca8be04/pope.jpeg?branch=production&width=659&quality=75&auto=webp&crop=16:9 ---  # The Pope Who Paved the Way for Francis' Encyclical on Climate > Sponsored content. 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They are at time.com/newsletters and are separate from a paid subscription. ## Video: Pope Steers Church Focus To Climate Change With Encyclical [Watch (HLS stream): Pope Steers Church Focus To Climate Change With Encyclical](https://cdn.jwplayer.com/manifests/c45icZz4.m3u8) (2:00)  _Published 2015-06-18. Pope Francis released his first encyclical Thursday and in it the pontiff focuses on climate change and global inequality._  by [Lily Rothman](https://time.com/author/lily-rothman/)  ## Lily Rothman Rothman is managing editor at TIME. Jun 18, 2015 1:30 PM UTC  Portrait of Pope Leo XIII (Carpineto Romano, 1810-Rome, 1903), painting by Franz Seraph von Lenbach (1836-1904), 1885. Portrait of Pope Leo XIII (Carpineto Romano, 1810-Rome, 1903), painting by Franz Seraph von Lenbach (1836-1904), 1885.De Agostini/Getty Images  by [Lily Rothman](https://time.com/author/lily-rothman/)  ## Lily Rothman Rothman is managing editor at TIME. Jun 18, 2015 1:30 PM UTC On Thursday, when Pope Francis issued [a much-anticipated encyclical ](http://time.com/3925736/pope-francis-climate-change-encyclical-laudato-si/)(“a letter from the Pope to the bishops of the Roman Catholic Church, setting forth his views on anything he chooses for serious consideration, but not necessarily an infallible document,” as TIME once [explained](http://time.com/vault/issue/1964-08-21/page/39)), he tackled one of today’s most controversial and pressing topics: the environment, and the climate’s impact on poverty. The choice of topic drew criticism even before its publication. On Monday, Jeb Bush became [the latest politician to posit ](http://time.com/3924287/pope-francis-climate-change/)that the Catholic Church should stay out of political and economic issues. But it’s actually been more than a century since the papacy changed its stance in favor of engaging with contemporary debates. One reason for that change was another papal encyclical, one of the most influential such letters in Vatican history: Rerum Novarum. In the late 19th century, the Church’s long-strained relationship with wealth was being tested anew by the rise of unionism and socialism. Catholic leaders discouraged their flocks from participating in the then-growing labor movements. Pope Leo XIII saw that this situation would not do: though the Church was not a socialist organization, opposing the movements had the effect of alienating followers who just wanted a decent wage, higher living standards and a more fulfilling life. His response was Rerum Novarum, published in 1891\. Its title—encyclicals take their names from the first words of the document—translates as “Concerning New Things.” It was a strong statement that the Church was paying attention to the world around it. In 1931, when Pope Pius XI celebrated its 40th anniversary with his own encyclical, Quadragesima Anno (“In the 40th Year”), which addressed the social problems of the modern world, he called the earlier document the Magna Carta of the Church’s involvement in social justice. As TIME [put it](http://time.com/vault/issue/1931-05-25/page/24) back then: --- > “” --- One of the great qualities of Rerum Novarum, TIME [noted](http://time.com/vault/issue/1941-06-02/page/67) when another decade had passed, was that its message could be adapted to its times: the support of the common people was unceasing, but the enemy evolved. Where socialism had been rejected in the 19th century for its focus on material goods, that rejection could later be applied to communism and then to Naziism. [In later years](http://time.com/vault/issue/1957-07-01/page/33), Rerum Novarum was also used as the theological basis for the Church’s support of Latin American Catholics who were opposing dictatorships, a policy that affected Pope Francis’ homeland of Argentina, where priests who opposed Juan Perón rose in power. Rerum Novarum continued to influence the popes of the 20th century. Mater et Magistra (“Mother and Teacher”) was John XXIII’s response to the 70th anniversary of Rerum Novarum, and an attempt to bring its message firmly into the 20th century by addressing pressing global issues like the population boom and the power of technology for good and evil. Though he didn’t cite Communism by name, John XXIII continued his predecessors’ opposition to such movements—all while supporting non-ism “socialization,” or the general theory of working together (eg. through welfare programs) to help others in a society. His 1963 Pacem in Terris (“Peace on Earth”) continued the progressive and modern themes. In 1967, Pope Paul VI continued the trend with Populorum Progressio (“The Development of Peoples”), an encyclical that TIME [joked](http://time.com/vault/issue/1967-04-07/page/92) “looked in some ways as if it had been drawn from a U.N. economic report.” With his encyclical on climate change, Pope Francis is simply continuing a 124-year-old tradition. ### The Most Surprising Photos of Pope Francis  The wind lifts Pope Francis' mantle as he delivers his speech in front of Independence Hall in Philadelphia, on Sept. 26, 2015. Tony Gentile—AP  Pope Francis looks at the Statue of Liberty from the window of a helicopter on his way to the John F. Kennedy International Airport, in New York City, on Sept. 26, 2015. L'Osservatore Romano/AP  A Pope Francis mannequin rides around in a car in Times Square as New York City waits for the arrival of the Pope to the city, on Sept. 24, 2015. Timothy A. Clary—AFP/Getty Images  Kaydn Dorsey, 4, and Lionel Perkins, 4, draw on a coloring sheet bearing the image of Pope Francis as they wait for him to arrive on a visit to Catholic Charities of the Archdiocese of Washington in Washington, on Sept. 24, 2015. David Goldman—Reuters  Nuns with the Hospitaler Sisters of Mercy in Pleasantville, N.J., pose for a selfie with a cutout of Pope Francis, at the World Meeting of Families conference, in Philadelphia, on Sept. 22, 2015. Matt Rourke—AP  Pope Francis blows out the candles of a birthday cake to celebrate his 78th birthday during a general audience at the Vatican on Dec. 17, 2014. Osservatore Romano/AFP/Getty Images  Paying the bill at Rome's Domus Internationalis Paulus VI hotel, where Pope Francis stayed as a cardinal before entering the conclave and being elected pope. Osservatore Romano/AP  Welcoming Pope emeritus Benedict XVI as he returns to the Vatican from the pontifical summer residence of Castel Gandolfo. Osservatore Romano/AP  Holding a disabled child after celebrating Easter Mass. Alessandro di Meo—ANSA/Zuma Press  Pope Francis masks in a factory in Brazil, where the Pontiff took his first overseas trip. Christophe Simon—AFP/Getty Images  Leading the Worldwide Eucharistic adoration at the Vatican. Alessandra Benedetti—Corbis  A gust of wind blows the pope's mantle. Alessandra Tarantino—AP  Attending the opening of the Pastoral Convention of the Diocese of Rome. Stefano Rellandini—Reuters  Leaving a welcoming ceremony at Guanabara Palace in Rio de Janeiro. Ricardo Moraes—Reuters  Greeting the weekly General Audience. Stefano Rellandini—Reuters  Pointing to the statue of Our Lady of Aparecida from the balcony of the Aparecida basilica in Brazil. Domenico Stinellis—AP  A Catholic faithful in Brazil bears a sticker of Pope Francis on his forehead. Ueslei Marcelino—Reuters  Images of Pope Francis projected onto screens at Copacabana beach in Rio de Janeiro. Paulo Whitaker— Reuters  Departing Rio de Janeiro. Ricardo Moraes—Reuters  A stray dog walks across the stage near the altar where Pope Francis celebrates the World Youth Day's closing Mass on the Copacabana beachfront. Victor R. Caivano—AP  Listening to confessions of young people in a park in Rio de Janeiro. L'Osservatore Romano—EPA  Posing with youths in Saint Peter's Basilica. L'Osservatore Romano—EPA  Greeting the faithful on a rainy day during the General Audience. Fabio Frustaci—Eidon Press/Zuma Press  Arriving to lead his General Audience in a firefighter's helmet. Stefano Rellandini—Reuters  A quiet moment after meeting with Equatorial Guinea's President Teodoro Obiang Nguema Mbasogo at the Vatican. Max Rossi—Reuters  Marking the 110th anniversary UNITALSI, a Catholic organization dedicated to helping the sick. Francesco Zizola—NOOR for TIME  A private Audience with Russian President Vladimir Putin. L'Osservatore Romano/AP  Keeping warm during a General Audience. Alessandra Tarantino—AP  Comforting a disfigured man at the end of his General Audience. Claudio Peri—EPA  Blessing a sick man with deformed facial features. Evandro Inetti—Zuma Press  Visiting the parish of the Sant'Alfonso Maria de Liguori during the Epiphany day. L'Osservatore Romano—AFP/Getty Images  Reacting to devotees at a weekly General Audience. Alessandro Bianchi—Reuters  A seagull attacks a dove released during a prayer conducted by Pope Francis. Alessandro Bianchi—Reuters  A scarf is tossed at Pope Francis by a faithful. Tony Gentile—Reuters  Italian artist Mauro Pallotta's superhero rendering of Pope Francis in a street near St. Peter's Basilica. Alessandra Benedetti—Corbis  Blowing a kiss to pilgrims gathered at Saint Peter's Square. Vincenzo Pinto—AFP/Getty Images  Meeting with U.S. President Barack Obama in the private library of the Apostolic Palace in Vatican City. Vatican Pool/Contrasto/Redux  With Queen Elizabeth and Prince Philip at the Vatican. Alessandra Benedetti—Vatican Pool/Corbis  A wind gust lifts Pope Francis's mantle as he arrives at the traditional Washing of the Feet during Holy Thursday. Alberto Pizzoli—AFP/Getty Images  Kissing a man's at the traditional Washing of the Feet. Alberto Pizzoli—AFP/Getty Images  Visitors take photos of Pope Francis as he speaks from the central balcony of St. Peter's Basilica at the Vatican. 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