Havana – Stepping into history, President Barack Obama opened an extraordinary visit to Cuba on Sunday, eager to push decades of acrimony deeper into the past and forge irreversible ties with America’s former adversary. “This is a historic visit and a historic opportunity,” Obama said as he greeted staff of the new US Embassy in Havana. ‘QUE BOLA CUBA?’ – That’s ‘What’s up, Cuba’ in local slang and this was the first tweet posted by United States President Barack Obama when he landed in Havana, Cuba, March 20. He is shown with wife Michelle greeting children and families of US Embassy personnel during an event at the Melia Habana Hotel just moments after he arrived. He is the first sitting president to visit the island nation since Calvin Coolidge in 1928. (AP) Air Force One touched down on a rainy, overcast day in the Cuban capital. The president was joined [...]