This gallery shows some of the plots (produced using ROOT) presented when the Higgs boson discovery was announced at CERN. CMS Tau Discrimination CMS CLs Exclusion Plot CMS γγ Inv. Mass Data MC comparison Atlas Significance Channel by Channel CMS 2D Cf-Cv Likelihood Profile CMS P-Value trends MELA Dilepton Channels CMS γ MVA Discrimination CMS Data MC Ratio Plot Atlas CLs Exclusion Atlas Data MC Comparison Atlas P0 Trends