The journey in search for the Higgs boson started in earnest with the discovery of the W and Z bosons. The LHC accelerator, the ATLAS and CMS experiments were conceived in the late 1980s and early 1990s, and it took two decades to turn the concepts to reality. Novel and innovative technologies needed to be developed and turned into superbly functioning engines for providing proton‐proton collisions in the case of the LHC and physics results in the case of the experiments. The most significant discovery so far to emerge from the LHC project is that of a heavy scalar boson, announced on 4th July 2012. The data collected so far point strongly to its properties as those expected for the Higgs boson associated with the Brout‐Englert‐Higgs mechanism. The discovery of the Higgs boson in July 2012 by the ATLAS and CMS experiments at the Large Hadron Collider at CERN in Geneva is one of the great scientific achievements of this new century. The mechanism that led to the postulation of this elusive subatomic particle, some 50 years ago, imparts mass to the fundamental building blocks of nature.The discovery of the Higgs boson represents the coronation of the Standard Model (SM) of particle physics, a theory that describes our visible universe in exquisite detail. The clearest observed signal for the Higgs boson was found in its decay modes to two photons or into two Z bosons, that each in turn decay into electron‐positron or positive and negative muon pairs.