First collisions in the Large Hadron Collider
http://press.web.cern.ch/press/PressReleases/Releases2009/PR17.09E.html
Only at a ‘paltry’ 0.45 TeV per beam (CERN are wanting to ramp that up to about 3.5 TeV per beam over the next few months) but one can really now say that the LHC ‘works’.