The document provides a historical overview of augmented reality (AR), tracing its development from the 1960s to the present. Key milestones include the creation of the first head-mounted display in 1968, the coining of the term 'augmented reality' in 1990, and the evolution of AR applications in various industries, including entertainment, sports, and retail. Technological advancements have made AR more accessible to everyday consumers, culminating in significant innovations such as Google's Glass and IKEA's AR app.