Substitution Ciphers

   Unknown

 

The first known ciphers were

Caesar Ciphers

Next came

Pairing Ciphers

 

But later, someone thought of keys. And this was the best idea in 1000 years of coding!

Substitution Cipher A  

To understand how to crack ciphers

Mystery Cipher

To practise

Substitution Cipher B 

For clues

Language Patterns

 
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