In 1956, there were some people who were not happy with the government in Poznań, which is a city in Poland. They wanted to speak out and tell the government how they felt. So, a lot of people gathered together in the streets and started to protest. They were shouting and holding signs, and they wanted the government to change.
The government didn't like this and they sent soldiers and police officers to stop the protests. But the people didn't want to stop, so there was a big fight between the protesters and the soldiers.
After a while, the government decided to listen to what the protesters wanted. They promised to make changes to the way they were doing things. The protests eventually stopped, but it helped to show that people had a voice and could speak out when they wanted to.
The Poznań protests of 1956 were an important moment in Polish history, and they are still talked about today as an example of how people can come together to demand change.