So imagine you have a secret message that you don't want anyone else to read except for the person you're sending it to. That's what a lot of spies and soldiers during World War II wanted to do. They needed to send messages that the enemy couldn't understand.
That's where the biuro szyfrów comes in. Biuro szyfrów (pronounced bee-oo-row shih-froof) was a secret organization during World War II in Poland. Their job was to create secret codes and ciphers to send messages between soldiers, spies, and leaders.
Think of it like a secret language. Instead of using regular words, they would use codes or symbols that only the person with the right key could understand. It's sort of like a puzzle, where the only way to solve it is by having the right key.
The biuro szyfrów was really good at what they did. They created codes that were so complicated that even other countries' codebreakers couldn't crack them. This made the messages safe from enemies who might be listening in.
So, in short, the biuro szyfrów was like a secret club of code makers who created codes that only the right people could understand. They did this to keep messages secret during a war. It's kind of like having a secret code with your friends, but instead of just being fun, it's really important for helping your team win the war!