Caesar code

Caesar code

Caesar code is a good example of a cipher. It was used by Julius Caesar a long time ago when he wanted to write something private. It's a simple and easy to learn. It works by replacing each letter of the alphabet by a letter three letters forward.

For example, “A” is the letter “D” and “N” is the letter “Q”. Here is the whole code:

A B C D E F G H I J K L M N O P Q R S T U V W X Z Y

D E F G H I J K L M N O P Q R S T U V W X Y Z A B C