7 Strange Facts About How Crossword Puzzles Were Invented

By Trivia Daily, Staff Writer — Published September 12, 2026

Table of Contents

• Key Takeaways
• The First Strange Crossword Puzzles Appeared by Accident
• 1. The Original Design Looked Nothing Like Modern Crosswords
• 2. The New York Times Called Crosswords a “Sinful Waste” Before Embracing Them
• 3. Crossword Mania Caused Dictionary Shortages in Libraries
• 4. Medical Experts Warned Crosswords Could Cause Harm
• 5. The Inventor Died in Obscurity Without Financial Reward
• 6. Early Crosswords Had No Standardized Rules or Quality Control
• 7. Crosswords Were Banned During Wartime Over Espionage Fears
• Frequently Asked Questions

The crossword puzzle is one of the world’s most beloved brain teasers, appearing in newspapers and apps across the globe. But the story of how this strange crossword puzzle came to be is filled with surprising twists, accidental discoveries, and fascinating trivia that even devoted solvers might not know. What began as a last-minute filler for a Sunday newspaper became a cultural phenomenon that changed the way millions of people engage with words and logic.

The invention and evolution of crosswords reveal a collection of interesting facts that showcase human creativity and the power of simple ideas to capture imaginations worldwide.

Key Takeaways

• The first crossword puzzle appeared in a newspaper in 1913 as a desperate space-filler, not a planned innovation.
• Early crosswords had no black squares—they used a diamond shape with numbered cells instead.
• The New York Times initially rejected crosswords as a “primitive” form of mental exercise before becoming the gold standard.
• Crossword mania in the 1920s became so intense that libraries banned dictionaries to stop puzzle-solvers from monopolizing them.
• The inventor never profited from his creation and died without receiving recognition for changing newspaper publishing forever.
• Crosswords were once considered dangerous distractions that could harm productivity and mental health.

The First Strange Crossword Puzzles Appeared by Accident

Arthur Wynne, a journalist from Liverpool working at the New York World newspaper, created the first modern crossword puzzle on December 21, 1913. He needed to fill space in the Sunday “Fun” section and remembered a word game from his childhood called “Magic Squares.” Working quickly, he designed a diamond-shaped grid with simple clues and called it a “Word-Cross Puzzle.”

The puzzle was an immediate hit with readers. A week later, a typesetting error reversed the name to “Cross-Word,” and the modern name was born. Wynne continued creating puzzles weekly, gradually refining the format. His invention was entirely unplanned—a solution to an editorial problem that happened to tap into something readers desperately wanted.

1. The Original Design Looked Nothing Like Modern Crosswords

Wynne’s first puzzle bore little resemblance to today’s crosswords. It was shaped like a hollow diamond with a hole in the center, rather than the familiar square grid. The puzzle contained no black squares to separate words—instead, thick lines divided the sections. Clues were labeled with numbers but didn’t specify “across” or “down” in the way modern solvers expect.

The diamond shape made the puzzle visually distinctive but also limited its complexity. As crosswords evolved, constructors discovered that rectangular grids with black squares offered far more flexibility for creating interesting word patterns and challenging clues. The transition to the modern format happened gradually throughout the 1920s as different newspapers experimented with variations.

2. The New York Times Called Crosswords a “Sinful Waste” Before Embracing Them

When crossword mania swept America in the 1920s, the prestigious New York Times refused to publish them. The editorial board dismissed crosswords as a passing fad and a “primitive sort of mental exercise.” They held this position for more than two decades while nearly every other major newspaper featured daily puzzles.

The Times finally reversed course in 1942, during World War II. Editors reasoned that readers needed a mental diversion from war news. The first Times crossword appeared on February 15, 1942. Today, the New York Times crossword is considered the gold standard of puzzle construction, with Monday puzzles being the easiest and Saturday puzzles the most challenging. Sunday puzzles are larger but typically fall between Thursday and Saturday in difficulty.

3. Crossword Mania Caused Dictionary Shortages in Libraries

The crossword craze of the 1920s reached such fever pitch that it created genuine social disruptions. Libraries across America reported that dictionaries were constantly checked out or monopolized by puzzle solvers who refused to leave the reference sections. Some libraries banned dictionaries from circulation entirely or limited patron access to prevent crossword enthusiasts from hogging resources.

Publishers rushed to capitalize on the trend. The first crossword puzzle book, published by Simon & Schuster in 1924, became an unexpected bestseller. The company included a pencil with each book, knowing that solvers would need one. Railroad companies reported increased pencil sales in their club cars. Department stores created crossword-themed fashion lines. The phenomenon demonstrated how a simple word game could influence commerce and daily life.

4. Medical Experts Warned Crosswords Could Cause Harm

As crosswords gained popularity, some medical professionals and social commentators expressed serious concerns. They warned that excessive puzzle-solving could lead to mental strain, wasted productivity, and even physical ailments. Articles appeared in newspapers cautioning against “crossword addiction” and suggesting that the puzzles might cause insomnia or nervous exhaustion.

One widely circulated claim suggested that crosswords could lead to poor posture and eye strain from hunching over newspapers. Some critics argued that time spent on puzzles represented hours stolen from more productive activities or meaningful social interaction. These concerns seem quaint today, given that modern research suggests crosswords and similar puzzles may help maintain cognitive function and provide genuine mental benefits.

5. The Inventor Died in Obscurity Without Financial Reward

Arthur Wynne never received royalties or significant recognition for inventing the crossword puzzle. He continued working as a newspaper editor, creating puzzles for the New York World without additional compensation beyond his regular salary. The concept of intellectual property protection for puzzle formats didn’t exist in the same way it does today.

Wynne died in 1945 in Clearwater, Florida, largely forgotten by the public. He never witnessed the full scope of what his invention became—a daily ritual for millions of people worldwide, a sophisticated art form with celebrity constructors, and a multi-million-dollar industry. His contribution to popular culture far exceeded any recognition or financial benefit he received during his lifetime.

6. Early Crosswords Had No Standardized Rules or Quality Control

The first decades of crossword publishing were chaotic. Different newspapers used different grid sizes, clue styles, and difficulty levels with no consistency. Some puzzles contained obscure words that few readers could know. Others included made-up words or required solvers to guess what the constructor was thinking rather than following logical wordplay.

Constructors gradually developed conventions that improved puzzle quality. Grids became symmetrical, with black squares arranged in rotational patterns. Rules emerged about minimum word length and the percentage of black squares allowed. Quality publications began rejecting puzzles with too many obscure entries or unfair clues. These standards transformed crosswords from random word games into carefully crafted mental challenges with consistent expectations.

7. Crosswords Were Banned During Wartime Over Espionage Fears

During World War II, British intelligence services briefly investigated crossword puzzles in the Daily Telegraph after noticing that several puzzles contained words matching D-Day operation codenames. Words like “Utah,” “Omaha,” “Overlord,” and “Mulberry” appeared in puzzles shortly before the invasion.

Investigators interrogated the puzzle constructor, a schoolteacher named Leonard Dawe, suspecting a security breach. The investigation concluded that the coincidences were exactly that—random chance rather than espionage. Dawe explained that he often asked his students to suggest words for puzzles, and some students had apparently overheard military personnel discussing operations near their school. The incident remains one of the strangest episodes in crossword history.

Frequently Asked Questions

Who invented the crossword puzzle?

Arthur Wynne, a journalist from Liverpool working at the New York World newspaper, created the first modern crossword puzzle in 1913. He designed it as a quick space-filler for the Sunday edition’s entertainment section.

What was the first crossword puzzle called?

The first puzzle was called a “Word-Cross Puzzle,” but a typesetting error the following week reversed it to “Cross-Word.” The hyphen was eventually dropped, giving us the modern name “crossword.”

When did crosswords become popular?

Crosswords exploded in popularity during the 1920s, creating a nationwide craze in America. The first crossword puzzle book, published in 1924, became an unexpected bestseller and triggered massive demand for more puzzles.

Why are New York Times crosswords considered the best?

The New York Times maintains rigorous quality standards, employs expert editors, and features puzzles from top constructors worldwide. Despite initially rejecting crosswords as lowbrow, the Times has published daily puzzles since 1942 and set the industry standard for quality and difficulty progression.

The next time you pick up a pencil to tackle your daily crossword, remember that you’re participating in a tradition born from deadline pressure and happy accidents. What started as one journalist’s quick solution to fill newspaper space became a global phenomenon that continues to challenge and delight millions of solvers every single day.