Hey there kiddo! Have you heard of the National Football League (NFL)? It's a really cool sports league where teams from all over the United States play football games against each other.
Now, the NFL has been around for a really long time, and every ten years they put together a special team called the "All-Decade Team". This team is made up of the best players from the past ten years of the NFL.
So let's say the NFL was making an All-Decade Team for the years 2010-2019. They would look at all the football players who played during that time and pick the very best ones for each position.
For example, if they were picking a quarterback for the All-Decade Team, they might choose someone like Tom Brady who played for the New England Patriots during that time and won a lot of games and awards.
And they don't just pick one player for each position - they pick many players who were all really good during that decade. That way, the All-Decade Team is made up of the absolute best players from that time period.
So when the NFL puts together an All-Decade Team, it's a really big deal because it recognizes the best football players from that time. It's like getting an award for being the very best at what you do!