The term "when?" refers to the inquiry about the timing of an event or action. It seeks to determine a specific point in time, whether in the past, present, or future. This question is fundamental in everyday communication, helping people coordinate activities and understand sequences of events. In various contexts, such as history or science, "when?" can lead to significant discoveries. For example, asking "when?" about the Industrial Revolution helps identify its timeline and impact on society. Similarly, in project management, knowing "when?" tasks are due is crucial for meeting deadlines and ensuring successful completion.