Havana: Air Force One touched down at Havana's airport late Sunday afternoon, Cuba time, after a three-hour flight from Washington.
Stepping into history, President Barack Obama opened an extraordinary visit to Cuba, eager to push decades of acrimony deeper into the past and forge irreversible ties with America's former adversary.
The president was joined by wife Michelle Obama and daughters Malia and Sasha on the flight, with dozens of US lawmakers and business leaders arriving separately for the visit.
Obama's whirlwind trip is a crowning moment in his and Cuban President Raul Castro's ambitious effort to restore normal relations between their countries. While deep differences persist, the economic and political relationship has changed rapidly in the 15 months since the leaders vowed a new beginning.
For more than 50 years, Cuba was an unimaginable destination for a US president, as well as most American citizens. The US severed diplomatic relations with Cuba in 1961 after Fidel Castro's revolution sparked fears of communism spreading to the Western Hemisphere. Domestic politics in both countries contributed to the continued estrangement well after the Cold War ended.
The last visit to Cuba by a US president came in 1928, when Calvin Coolidge arrived on the island in a battleship.
"This is an incredible thing," said Carlos Maza, a 48-year-old refrigerator repairman from Havana. He called it "a big step forward."
Obama's visit was highly anticipated in Cuba, where workers furiously cleaned up the streets in Old Havana and gave buildings a fresh coat of paint. American flags were raised alongside the Cuban colours in parts of the capital, an improbable image for those who have lived through a half-century of bitterness between the two countries.
Many Cubans were staying home in order to avoid extensive closures of main boulevards. By early afternoon the Cuban government didn't appear to be calling out crowds of supporters to welcome Obama, as it has with other visiting dignitaries. The city's seaside Malecon promenade was largely deserted Sunday morning except for a few cars, joggers, fishermen and pelicans.
The president's schedule in Cuba is jam-packed, including official meetings with Raul Castro and an event with US and Cuban entrepreneurs. But much of Obama's visit was about appealing directly to the Cuban people and celebrating the island's vibrant culture.
"I don't think that the Cuban people are going to be bewitched by North American culture," Gustavo Machin, Cuba's deputy director of US affairs, told The Associated Press. "We don't fear ties with the United States."
Shortly after arriving, Obama planned to greet staff at the new US Embassy in Havana, which was opened amid great fanfare last year. He was then joining his family on a walking tour of Old Havana, including the Havana Cathedral.
Obama was to be greeted there by Cardinal Jaime Ortega, who helped facilitate months of secret talks between US and Cuban officials that led to the normalisation of diplomatic relations in December 2014.
A highlight of Obama's visit comes on Tuesday when he joins Castro and a crowd of baseball-crazed Cubans for a game between the beloved national team and Major League Baseball's Tampa Bay Rays. The president also planned a speech at the Grand Theatre of Havana laying out his vision for greater freedoms and more economic opportunity in Cuba.
Two years after taking power in 2008, Castro launched economic and social reforms that appear slow-moving to many Cubans and foreigners, but are lasting and widespread within Cuban society. The changes have allowed hundreds of thousands of people to work in the private sector and have relaxed limits on cellphones, Internet and Cubans' comfort with discussing their country's problems in public, for example.
The Cuban government has been unyielding, however, on making changes to its single-party political system and to the strict limits on media, public speech, assembly and dissent.