Question: The Playfair cipher was invented in 1854 by an English scientist and inventor of many scientific breakthroughs of what era?
Sentence (from "Charles Wheatstone"): Sir Charles Wheatstone FRS (6 February 1802 – 19 October 1875), was an English scientist and inventor of many scientific breakthroughs of the Victorian era, including the English concertina, the stereoscope (a device for displaying three-dimensional images), and the Playfair cipher (an encryption technique).
Relevant evidence: Yes