On May 7, 1915, a German U-boat torpedoed and sank the British liner RMS Lusitania off the southern coast of Ireland, killing 1,198 people, in…

On Aug. 30, 1916, on his fourth attempt, explorer Ernest Shackelton successfully returned to Elephant Island in Antarctica to rescue 22 of his…

WASHINGTON — It might discomfit the president and secretary of state to be told that their excellent first steps in foreign policy are reminis…