King Charles will acknowledge the “darkest days” of colonial rule and slavery while touring Caribbean countries on a visit beginning this month, a Buckingham Palace spokesman said on Friday. The king will first visit the Bahamas and Guyana alone, followed by a trip to Antigua and Barbuda with Queen Camilla, where Charles will give a speech at a meeting of Commonwealth heads of government, the palace said. Charles, 77, who is still receiving treatment for cancer, will visit former colonies that...