100+ Letters code PowerPoint (PPT) Presentations, Letters code PPTs

Letters code - PowerPoint PPT Presentation

Ever wanted to send a message but not let anybody else know what you are saying?

Ever wanted to send a message but not let anybody else know what you are saying? For thousands of years people have been doing just that. They do it using codes. The ancient Egyptians and Greeks used codes to create secret messages. Mary Queen of Scots sent letters in code.

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Letters code - PowerPoint PPT Presentation

Ever wanted to send a message but not let anybody else know what you are saying?