What a night! As a British athletics writer at the last five Olympics and 10 World Championships, I haven't had many nights like this. I will need calming down before making up my mind how the 1-2 by Christine Ohuruogu and Nicola Sanders in the 400m here tonight rates against Liz McColgan's win at 10,000m in Tokyo in 1991, Jonathan Edwards's two triple jump world records and gold medal in Gothenburg in 1995, and the 1-2 by Colin Jackson and Tony Jarrett at 110m hurdles in 1993 in Stuttgart. But that debate is for another day.
First, the main facts -
1st Ohuruogu (49.61), 2nd Sanders (49.65) - the third and fourth fastest times ever by British women behind Kathy Cook's 49.43 for the bronze medal at the 1984 Olympic Games and Katharine Merry's 49.59 in the 2001 Athens Grand Prix.
Ohuruogu becomes the first British woman to win a World or Olympic 400m title - only three weeks after the end of a one-year suspension for missing three drugs tests.
Sanders is from Amersham, Ohuruogu is from Stratford, east London - which means that she is suddenly restored as the face of London 2012 - even though she has yet to convince the British Olympic Assocation to lift her life ban for her three missed tests.
And a bit of speculation
The BOA will lift her ban