Centralia Massacre was a very sad and scary thing that happened in Centralia, a place in Washington long ago. It all started because some people who wanted workers' rights and some people who didn't like them got into a big fight.
The workers' rights people met for a parade on November 11, 1919. They were called the Industrial Workers of the World or the Wobblies for short. Some people didn't like them and wanted to stop them from parading.
When the Wobblies' parade was starting, a bunch of people attacked them. These people were from another group called the American Legion. They were very angry and fought with the Wobblies.
A man named Wesley Everest was with the Wobblies. He was a brave worker who fought for their rights. But the angry people from the American Legion caught him and hurt him very badly. They took him to a bridge outside of town and hung him from a tree.
This made a lot of people very upset. It was not fair that Wesley Everest was hurt and killed just because he wanted workers' rights. Some people from the Wobblies and other groups started fighting again. But this time, the police came to stop them.
The Centralia Massacre was very sad because it hurt a lot of people. Wesley Everest was a hero who stood up for what he believed in, and he should not have been treated so unfairly. It is important to remember what happened in Centralia so we can work to make things better and fairer for everyone.