Conversation so far:
what took place in London?
On July 28, 2012, Phelps placed eighth in the morning prelims for the 400-meter individual medley.
what did he place after that?
Phelps, the two-time defending Olympic champion, won his heat in 4 minutes.

Question: was this a record breaking time?
Self-contained rewrite: Was Michael Phelps time in London a record breaking time?