Front Burner: The Not-So-Sweet Side of Sugar

James Walvin, a professor emeritus of history at the University of York in England, will discuss his book “Sugar: The World Corrupted, From Slavery to Obesity,” at the Brooklyn Historical Society. He promises not to sweeten the very fraught story of this culinary staple. “The Not-So-Sweet History of Sugar,” Tuesday, 6:30 to 8 p.m., $10…

The 52 Places Traveler: The 52 Places Traveler: São Tomé and Príncipe, Where Nature has the Upper Hand

“Príncipe’s government has taken another path,” said Mr. Torres. “They want to preserve the island.” Mr. Shuttleworth’s approach has to been to treat the hotel as a kind of living museum. He’s preserved the plantation house’s facade and its original grand wooden staircase and ornate ceilings. Outside, a plaque commemorates the spot where the astronomer…