Largest stand up in 24 hours (multiple venue)
Who
United Nations Millennium Campaign
Where
United States (Multiple Venues (Globally))
When
The world record for the most people to 'Stand Up Against Poverty' in 24 hours was set on 16 - 17 October 2007 for the United Nation´s Millennium Campaign and involved a massive total of 43,716,440 participants in 6,540 events around the globe.