Great Britain's women secured their maiden Olympic volleyball victory as they came from behind to stun
African champions Algeria.
Janine Sandell and Lynne Beattie were both inspirational as the hosts won 22-25 25-19 23-25 25-19 15-8.
Team GB's next match in
is on Wednesday against
Elsewhere, defending Olympic champions
suffered a 3-1 defeat to the
in a re-run of the 2008 final in Beijing.
Great Britain's win represents a major reversal of the form book, as they are ranked 69th in the world - some 53 places behind Algeria.
And when the historic point came at 00:37 as Ciara Michel won a block at the net, some of the Team GB players fell to their knees in tears.
the 2011 World Cup winners,
maintained their excellent start to the tournament with a second straight win, beating
also maintained their 100% winning record at London 2012 by defeating
top Pool B ahead of United States and Brazil after overcoming
slumped to a second straight defeat after losing 3-1 to
Watch the deciding fifth set of Great Britain's historic victory
on the BBC interactive video player