Five years ago: President Barack Obama visited the Great Wall of China, which he described as "magical," before heading to Seoul, South Korea, for the final stop of his eight-day Asia tour. Two days before turning 92, Sen. Robert C. Byrd, D-W.Va., set a record for longest-serving lawmaker in congressional history at 56 years, 320 days. (That record was broken in 2013 by U.S. Rep. John Dingell, D-Mich.)