Substitution Cipher Puzzle

The phrase reveals a pivotal moment in scientific history: that Albert Einstein published his theory of general relativity. This groundbreaking theory, first detailed in 1915 with its field equations following in 1916, fundamentally reshaped our understanding of gravity. Einstein proposed that gravity is not merely a force, but rather a curvature of spacetime caused by massive objects, much like a heavy ball creating a dip in a stretched sheet. This elegant concept superseded Isaac Newton's earlier description of gravity and made predictions about phenomena such as black holes and the bending of light around celestial bodies.

Albert Einstein, a towering figure in physics, famously worked as a patent clerk during the period he was developing his revolutionary theories, including his earlier theory of special relativity in 1905. Beyond his scientific acumen, Einstein was also a vocal advocate for civil rights and a committed pacifist. The puzzle you solved employs a substitution cipher, a classic method of cryptography where each letter of the original message is consistently replaced by a different letter or symbol. This ancient encryption technique has a rich history, with early forms like the Caesar cipher used by Julius Caesar for military communications. The art of breaking such codes advanced significantly with the development of frequency analysis, first described in the 9th century.