A U.S. judge has ruled that Google illegally monopolized digital advertising markets, potentially leading to a breakup of the company. The ruling comes after Google's 27-year journey from a Stanford University dorm to internet dominance. The tech giant has achieved numerous milestones, including the creation of its search engine, the launch of Gmail and Google Maps, the acquisition of YouTube and Android, and the formation of Alphabet as its parent company. Google has also faced fines from the European Commission for anti-competitive practices.