I don't know, that's why i asked this question!
g8 is more important than g20
Once a year
China
G20 Summit, London
The G-20 Summit will take place in Pittsburgh, Pennsylvania.
For a global perspective from global business news sources on the G20 summit, check out these results from Newssift using the query: G20 Summit + London + G20 Leaders Link to results: http://www.newssift.com/results.jsp?n=theme:2133661793:G20%20Summit|place:2145487041PLUS237622:London|theme:2134055084:G20%20Leaders&po=0&ed=&sd=2009-03-15&sort=&newN=theme:2134055084:G20%20Leaders&sequence=theme:2133661793:G20%20Summit|place:2145487041PLUS237622:London&slaTerm=
If this is a reference to the G20 Leaders' Summit, then yes. This will be held in Brisbane, capital of Queensland, on 15-16 November 2014.
Republic of Korea (Seoul) - Nov 11-12,2010
Nigeria is not an official member of either G8 or G20, but an invitation to the summit was given to her along with other important emerging markets of Southern hemisphere
The Vancouver Olympics possibly? and I believe the G20 summit took place this year
The G20 summit
The 7th G20 summit was held in Los Cabos, Mexico. Felipe Calderon hosted the summit which took places during June 18 and 19, 2012. The 8th summit will be held in Russia in September 2013.