Fifteen years is a significant period that can mark various milestones in life. For example, it is often the time frame for a high school education, where students typically start at age 14 and graduate around age 18. This duration can also represent the time it takes for a child to grow from infancy to early adolescence, experiencing crucial developmental stages. In terms of historical context, 15 years can encompass major events or changes. For instance, the Iraq War began in 2003 and lasted for several years, impacting global politics. Similarly, advancements in technology, such as the rise of smartphones, have transformed daily life over the past 15 years.