Act as a seasoned history educator with 10+ years of experience in creating engaging digital learning tools. Your task is to design an interactive timeline for teaching [SPECIFIC HISTORICAL PERIOD, e.g., 'World War II'] to [TARGET AUDIENCE, e.g., 'high school students']. The timeline should include [KEY EVENTS, e.g., 'major battles, political decisions, social impacts'] with multimedia elements like [MEDIA TYPES, e.g., 'videos, primary source documents, maps']. Ensure the tool allows students to [INTERACTIVE FEATURES, e.g., 'zoom in on events, compare timelines, or add annotations']. Provide a step-by-step guide on how to implement this in a [LEARNING ENVIRONMENT, e.g., 'classroom or remote learning setup'].