Dr. Marcus Blackwell
Dr. Marcus Blackwell is a cryptography historian with over 15 years of experience researching classical ciphers and their role in military history. He holds a PhD in History of Science from Cambridge University and has published extensively on the evolution of cryptographic methods from ancient times through World War II. His book "Codes of War: A History of Military Cryptography" is considered a definitive reference in the field.
The Complete History of the Atbash Cipher: From Ancient Hebrew to Modern Cryptography
Discover how ancient Hebrew scribes invented the Atbash cipher in 500 BCE to encrypt 'Babylon' as 'Sheshach' in the Book of Jeremiah, creating humanity's oldest documented encryption system that survives today as a foundational example in cryptography education.
The History of the Caesar Cipher: From Julius Caesar to Modern Times
The caesar cipher history begins over 2,000 years ago with one of the oldest and most famous encryption methods ever documented. Named after the Roman military leader Julius Caesar, this simple yet ingenious technique has survived for over two millennia.