Decade

A decade is a period of ten years. It is used to measure and organize time, often for historical, cultural, or personal reference. For example, the 1980s refers to the years 1980 through 1989. Decades help us understand change over time, track trends, and discuss events within a specific ten-year span. They are commonly recognized in everyday life and history to provide context and structure to our understanding of the past, present, and future.