Okay kiddo, communism is a system where everyone shares everything equally and there are no rich or poor people. The Communist Party of Bohemia and Moravia was a group of people who believed in this system and wanted to make it happen in what is now the Czech Republic.
Bohemia and Moravia used to be part of a bigger country called Czechoslovakia. The Communist Party of Bohemia and Moravia was formed in 1921 and it wanted to bring communism to Czechoslovakia. But in 1948, the party took over the government and made Czechoslovakia a communist country.
The Communist Party of Bohemia and Moravia was in charge of running the country and making sure everyone was treated equally. But some people didn't like living under communism and wanted to live in a different way. These people felt like they didn't have any freedom or choices because the government controlled everything.
Eventually, communism fell out of favor in Czechoslovakia and the Communist Party of Bohemia and Moravia lost power in 1989. Today, the party still exists but it doesn't have as much influence as it used to. Some people still believe in communism, but most people in the Czech Republic prefer to live in a democracy where they can make their own choices.