The first conference was held in London in 2007 and drew nearly 2,000 participants from 115 countries and the second conference was held in Washington, D.C. in 2010 and drew nearly 3,500 participants from 146 countries.
Sheffield | Sheffield United F.C. | Sheffield Wednesday F.C. | University of Sheffield | Sheffield Shield | Sheffield Scientific School | Jill Scott | BBC Radio Sheffield | Jill Clayburgh | Sheffield Telegraph | Sheffield Park | Jeremy Sheffield | Gary Sheffield | Sheffield station | Sheffield Inner Ring Road | Sheffield Hallam University | John Sheffield, 1st Duke of Buckingham and Normanby | Jill St. John | Jill Ker Conway | Jill Farren Phelps | Henry Holroyd, 3rd Earl of Sheffield | Bill Sheffield | Sheffield Star | Sheffield Doc/Fest | Sheffield Cathedral | Jill Long Thompson | Jill Kelley | Jill Bolte Taylor | Jill Barber | Sheffield Victoria railway station |