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Pope Francis holds mass in landmark visit to Cuba

Pope Francis began the first full day of his landmark visit to Cuba on Sunday with an outdoor Mass at Revolution Plaza, attended by President Raúl Castro and other leaders.

Catholics by the tens of thousands — some of whom had been waiting since the early morning — packed Havana’s Revolution Square and watched Francis arrive in his familiar open-air popemobile to see the service.

“Whatever wishes to be great must serve others, not be served by others,” Francis said during his homily.

He arrived in Havana on Saturday and encouraged Cuba and the United States to deepen relations. “I urge political leaders to persevere on this path and to develop all its potentialities … as an example of reconciliation for the entire world,” he said.

Next, he’ll travel to Holguin, Santiago de Cuba and El Cobre in Cuba, and then onward to a multi-city tour of the U.S., where he’ll meet with President Barack Obama and plans to address both Congress and the United Nations.

Pope Francis gives mass at Revolution Square in Havana, on September 20, 2015. Photo credit should read Yamil Lage/Getty Images.

Pope Francis gives mass at Revolution Square in Havana, on September 20, 2015. Photo credit should read Yamil Lage/Getty Images

HAVANA, CUBA - SEPTEMBER 20: People wave Cuban and Papal flags as Pope Francis passes by as he arrives to perform Mass on September 20, 2015 in Revolution Square in Havana, Cuba. Pope Francis is on the first full day of his three day visit to Cuba where he will meet President Raul Castro and hold Mass in Revolution Square before travelling to Holguin, Santiago de Cuba and El Cobre then onwards to the United States.  (Photo by Carl Court/Getty Images)

People wave Cuban and Papal flags as Pope Francis passes by as he arrives to perform Mass on September 20, 2015 in Revolution Square in Havana, Cuba. Photo by Carl Court/Getty Images

Pope Francis kisses a girl as he arrives at Revolution Square in Havana on September 20, 2015. Pope Francis will give mass on Revolution Square, the biggest event of his trip to Cuba, with nearly a million people expected to attend. The pontiff's eight-day tour will also take him to the United States.   AFP PHOTO / RODRIGO ARANGUA        (Photo credit should read RODRIGO ARANGUA/AFP/Getty Images)

Pope Francis kisses a girl as he arrives at Revolution Square in Havana on September 20, 2015. Photo by Rodrigo Arangua/Getty Images

HAVANA, CUBA - SEPTEMBER 20:  People look on as Pope Francis performs Mass on September 20, 2015 in Revolution Square in Havana, Cuba. Pope Francis is on the first full day of his three day visit to Cuba where he will meet President Raul Castro and hold Mass in Revolution Square before travelling to Holguin, Santiago de Cuba and El Cobre then onwards to the United States.  (Photo by Carl Court/Getty Images)

People look on as Pope Francis performs Mass on September 20, 2015 in Revolution Square in Havana, Cuba. Photo by Carl Court/Getty Images

Pope Francis is welcomed by Cubans during his journey from Jose Marti airport to the Nunciature in Havana, on September 19, 2015. Pope Francis' plane landed in Havana on Saturday at the start of a nine-day tour of Cuba and the United States whose recent diplomatic detente he helped broker. REUTERS/Adalberto Roque/Pool??      TPX IMAGES OF THE DAY      - RTS1XND

Pope Francis is welcomed by Cubans during his journey from Jose Marti airport to the Nunciature in Havana, on September 19, 2015. Photo by Adalberto Roque/Reuters

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