Usain Bolt made history on Thursday by becoming the first sprinter to win the 100m and 200m in consecutive Olympics. He won the 100 on Sunday and the 200 today, having set the 200m world record of 19.30 seconds at the 2008 Olympics and then lowering it to 19.19 at the 2009 world championships in Berlin. Bolt finished ahead of fellow Jamaican Yohan Blake, who came in at 19.32 seconds.
