7 Intriguing Insights into Sir Arthur Conan Doyle's 'The Adventures of Sherlock Holmes'

Sherlock Holmes stands as one of the most legendary detectives in literary history, renowned for his sharp observational skills and unparalleled deductive abilities. Created by Sir Arthur Conan Doyle, Holmes debuted in the 1887 novel A Study in Scarlet and later appeared in three additional novels. However, it is the 56 short stories, particularly the 12 featured in The Adventures of Sherlock Holmes (1892), that cemented his legacy. This collection showcases Holmes and his trusted companion, Dr. Watson, unraveling mysteries and addressing societal injustices, from a Bohemian king seeking to retrieve a scandalous photo to a governess entangled in a dubious scheme.

Discover more about Holmes and his groundbreaking early cases, which Esquire once hailed as “the finest, most captivating, and intellectually brilliant of the series.”

1. Arthur Conan Doyle saw Sherlock Holmes as a source of professional stability.

After publishing A Study in Scarlet and The Sign of the Four, Doyle envisioned Holmes thriving in the format of short stories. He thought the character would perfectly suit magazines like The Strand, as readers would be captivated by the ongoing, though episodic, exploits of a single protagonist. This strategy, Doyle hoped, would secure him steady work and financial stability.

“Several monthly publications were emerging at the time, with The Strand, led by the skilled editor Greenhough Smith, standing out,” Doyle wrote in 1924. “Observing these magazines with their standalone tales, it occurred to me that a recurring character could captivate readers and tie them to a specific publication … Reflecting on potential leads, I realized Sherlock Holmes, whom I had already featured in two short books, would be ideal for a series of short stories.”

Doyle’s prediction was spot on: The Strand readers became so devoted to Holmes that when Doyle ended the character’s life in 1893, approximately 20,000 subscribers canceled their memberships.

2. The debut Sherlock Holmes short story is surprisingly devoid of any real mystery.

Doyle’s inaugural Holmes tale for The Strand, “A Scandal in Bohemia,” debuted in July 1891 and presents no traditional mystery. Instead, Holmes serves as a retrieval agent: The King of Bohemia enlists his help to recover a compromising photograph of himself with his former lover, opera singer Irene Adler. Despite knowing the photo’s potential for blackmail and its location, Holmes fails to outsmart Adler. This makes his first short story appearance somewhat unsuccessful. While Adler reappears in various adaptations, “A Scandal in Bohemia” remains her sole full appearance in Doyle’s original works, with only brief mentions elsewhere.

3. Sherlock Holmes was modeled after a real-life individual.

Doyle modeled Sherlock Holmes, at least partially, after Dr. Joseph Bell, a surgeon and professor at Edinburgh’s Royal College of Surgeons. As Bell’s student, Doyle was fascinated by his mentor’s sharp observational skills and ability to diagnose conditions with minimal information. Bell’s expertise in handwriting analysis and dialectology—identifying someone’s background through their speech and accent—further enhanced his diagnostic abilities.

“[Edgar Allan] Poe’s brilliant detective, M. Dupin, had been a childhood idol of mine,” Doyle wrote in Collier’s Magazine in 1923. “But could I contribute something unique? I recalled my former teacher, Joe Bell—his sharp features, peculiar habits, and uncanny knack for noticing details. If Bell were a detective, he would transform this intriguing yet chaotic field into a more precise science … just as he demonstrated daily in the wards.”

4. Sherlock Holmes was the first fictional detective to employ a magnifying glass.

In A Study in Scarlet, Holmes became the pioneering fictional detective to employ a magnifying glass in an investigation. Magnifying glasses had long been used in microscopy, enabling scholars to examine the world in greater detail. These lenses allowed scientists to develop theories based on evidence invisible to the naked eye.

As a practicing physician, Doyle was well-versed in the application of microscopy in medicine. By equipping Holmes with a magnifying glass, he conveyed to readers that the detective would rely on scientific observation of crime scenes and evidence-based reasoning to crack cases.

The magnifying glass also appears in “The Red-Headed League” from The Adventures of Sherlock Holmes: “Mr. Merryweather sat solemnly on a crate, wearing a disgruntled expression, while Holmes knelt on the floor, using a lantern and a magnifying lens to meticulously inspect the gaps between the stones.”

5. The Adventures of Sherlock Holmes faced a ban in the Soviet Union.

Although Holmes is widely adored globally, his first collection of short stories was met with resistance in the USSR. When The Adventures of Sherlock Holmes was slated for publication in the Soviet Union in 1929, authorities intervened, citing its depiction of occultism, which was forbidden under Soviet law. Despite the ban, Holmes’s popularity ensured his stories persisted on the black market. The prohibition was eventually lifted in 1940.

6. Sherlock Holmes holds the record as the most-portrayed literary character.

Sherlock Holmes holds the Guinness World Record for being the “most-portrayed human literary character” in film and television, with 299 portrayals recorded as of 2015. In 1899, American actor William Gillette worked with Doyle to create the first official Holmes play, Sherlock Holmes, in which Gillette starred. He introduced iconic elements now associated with Holmes, such as the deerstalker hat, curved pipe, and cloak (though these items had appeared in earlier illustrations of Doyle’s works). Actors like Basil Rathbone and Nigel Bruce became famous for their portrayals of Holmes and Watson in the 1940s, while Benedict Cumberbatch and Robert Downey Jr. have taken on the role in recent years. However, Holmes isn’t the most-portrayed literary character overall—that title goes to Dracula.

7. Sherlock Holmes never actually utters the phrase “Elementary, my dear Watson.”

The detective has become a prime example of the Mandela Effect—a phenomenon where groups of people collectively misremember well-known phrases. Holmes frequently refers to his loyal companion as “my dear Watson” and describes his remarkable deductive skills as “elementary.” However, in the original four novels and 56 short stories, Holmes never combines these two phrases. In Doyle’s “The Adventure of the Crooked Man,” Holmes uses “my dear Watson” and later says “Elementary,” but never in the same sentence.

Some historians attribute the first use of the full phrase to the 1929 film The Return of Sherlock Holmes, while others argue it was already in circulation and parodied at least two decades earlier. Swedish Sherlockian Mattias Boström, author of From Holmes to Sherlock (2013), believes William Gillette may have popularized the phrase, though definitive evidence remains elusive.