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Pilcrows and other paragraph marks in Edwin Lewis’s History of the English Paragraph (1894). (Image courtesy of archive.org.)

The Evolution of Punctuating Paragraphs Through 5 Specific Markers

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Pilcrows and other paragraph marks in Edwin Lewis’s History of the English Paragraph (1894). (Image courtesy of archive.org.)

If you write, you punctuate. At the very lowest level of punctuation lies the blink-and-you’ll-miss-it space that separates words; above it are the commas, colons, semicolons and dashes with which we separate clauses; and at the very top, lording it over the rest, sit the period, question mark, and exclamation mark that are used to finish off completed sentences. But punctuation doesn’t stop there. In fact, it doesn’t even start there: Before writers ever thought to separate their words with spaces or punctuate their sentences with periods, documents were routinely arranged into visible, helpful paragraphs.

1. THE PARAGRAPHOS

Paragraphoi in a contract from the second half of third century CE.
P.Mich.inv. 1930; Recto,” University of Michigan Library Digital Collections. CC BY 3.0

The story of the birth of punctuation goes like this: At the Library of Alexandria in ancient Egypt, sometime during the third century BCE, Aristophanes, the chief librarian, was at his wits’ end. The scrolls that crossed his desk were unspaced and unpunctuated, in the fashion of the time, and were written in a script that had only a single case: there was no difference between lower- and uppercase letters so that WORDSCLAUSESANDSENTENCES ran together without breaks. Reading a text like this was an exercise in persistence and frustration.

Aristophanes’s solution was to invent what we now recognize as punctuation: he started to mark the documents he read with little inky dots—punctus, in Latin, leading to “punctuation”—that indicated short (·), medium (.) and long (˙) pauses respectively, each one wedged carefully between adjacent letters, so that reading became marginally easier. It was a tiny change with a disproportionate effect, kick-starting a continuous evolution of writing practices that have led to the spaces, punctuation marks, and other typographic conventions that define today’s written texts.

The odd thing is that punctuation had already been invented, a hundred years or more before Aristophanes’s time. At some point during the fourth century BCE, Greek readers and writers had taken to placing little horizontal lines in the left-hand margins of their documents, each one nestling under a line of text, to indicate that the line in question held some interesting change in topic. These marks were called paragraphoi, for para- ("beside") and graphein ("to write"), and they were used to call out anything from a change in subject to a new stanza of a poem or a change of speaker in a play—paragraphs, in other words, that would today be marked out with an indented or blank line. The simple stroke of the paragraphos is the earliest paragraph mark, certainly, but it is also the earliest true mark of punctuation.

2. THE PILCROW

Small red pilcrows (and, at right, a very large one) in a 13th-century manuscript written in England.
(Royal 13 A VII, f. 15. Image courtesy of the British Library.) CC0 1.0

As writers and readers experimented with the novel art of punctuation, paragraph marks branched out on their own. One of first new successors to the paragraphos was another very simple mark, an upside-down L-shaped symbol resembling the stylized gallows from a game of Hangman (Γ _ _ _ _ _ _). As simple as this new mark was, though, no one has definitively worked out how or why it came about. Its resemblance to the uppercase Greek letter gamma (Γ) has led some experts to suggest that it stands for the "g" in paragraphos, but this remains speculative at best, and the Γ has always languished in the shadow of a more famous sibling.

That sibling is the second of the paragraphos’s descendants. During the first centuries BCE and CE, writers working in Latin started to preface paragraphs with the letter K as an abbreviation for the word kaput, or "head," thus indicating that what followed was the "head" of a new argument or topic. For the Romans, however, the letter K, adopted from a pre-Latin alphabet, was increasingly considered old fashioned, and many writers preferred to use C in its place. K for kaput became C for capitulum, or "little head." As these little C-shaped marks grew ever more elaborate, they gained first one additional vertical stroke and later a second so that C became ¢ and later ¶, as seen here. This was the mark called the "pilcrow," from the Old French paragraphe and later the Old English pylcrafte, and it is the most iconic paragraph mark ever to have lived. It is still alive today, in fact, even if it no longer separates our paragraphs: click on the button marked with a in Microsoft Word and it will reveal the invisible characters within your document—the spaces, tabs, and line breaks that hold your words together.

3. DECORATED INITIAL LETTERS

A zoo-anthropomorphic initial S in a 12th-century manuscript, comprised of a human-animal hybrid. Arundel MS 98, f. 85v.
Image courtesy of the
British Library.CC0 1.0

After the collapse of the Roman Empire in the 4th century, writing and bookmaking retreated to the scriptoria, or writing rooms, of Christian monasteries. Here monks labored by candlelight, often without heating or even window panes to keep out the cold, to create some of the most beautiful books the world has ever seen, intricately illustrated and decorated with gold leaf. Even now, its gold untarnished by the passage of time, an illuminated manuscript is a thing to behold.

Monks were innovators when it came to marking out paragraphs. The pilcrow remained in common use, but the monks developed an array of additional techniques with which to mark paragraphs, sections, and chapters. Most simply, the first letter of a section or paragraph could be enlarged or moved out into the margin; later, more ambitious scribes created decorative initial letters that were so large and elaborate that they overshadowed the text itself. These initials came in a bewildering variety of forms: "historiated" letters depicted scenes from the associated story, while "inhabited" initials contained animal or human figures that are unrelated to the text. So-called "zoomorphic" initials were constructed from animals contorted into alphabetic shapes, and their tongue-twisting "zoo-anthropomorphic" cousins, as seen here, were composed of human and animal parts conjoined into a hybrid whole.

4. INDENTED PARAGRAPHS

Paragraph indents in the first edition of Moby-Dick, published in 1851.
Image courtesy of archive.org. Public domain.

Printing spelled the end of the traditional paragraph mark. As demand for books increased toward the end of the medieval period, both monasteries and lay bookmakers were forced to make their production more efficient. The workers who made books were arranged according to their specialties: scribes wrote the texts; miniators sketched and painted the accompanying illustrations, or miniatures; and rubricators added decorative letters, headings, and symbols in contrasting colors—usually in red ink, or rubrica. Pilcrows, which were often placed at the start of a line to indicate a new paragraph, were typical of the marks left out by scribes and added later by rubricators.

When printing arrived in Europe in the middle of the 15th century, the earliest printers confined themselves to replicating the work traditionally done by scribes. They printed their texts in black ink only, leaving spaces for illustrations and rubricated headings and symbols to be added later so that their patrons could have their books customized to their liking. The problem was that there were so many new books to be rubricated that the rubricators could not keep up; increasingly, the spaces once filled with large initial letters and decorative pilcrows were left empty, and readers began to associate the absence of a pilcrow with the start of a paragraph. The pilcrow died and the paragraph indent was born in its stead.

5. BLANK LINES

Just as printing saw the pilcrow’s end, the arrival of the Internet has ushered in changes not just to the way we mark paragraphs but also to paragraphs themselves. First, more and more websites (like this one!) are separating their paragraphs by blank lines rather than paragraph indents. This makes sense: blank lines are easier to pick out than indents when scrolling rapidly through a web page, and, without physical pages to turn, paragraph boundaries are vital in helping the reader find their place in a text. In this way, the paragraph is more important than ever.

The second change is more confusing: paragraphs are getting shorter, and for no apparent reason. News websites routinely break their stories into paragraphs of only one or two sentences each, so that the centuries-old hierarchy of section to paragraph to sentence is collapsing in on itself. Soon, the paragraph and the sentence may become one and the same thing—and what then? This may finally be the end for the 2400-year history of the paragraph mark.

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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iStock
Sponsor Content: BarkBox
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8 Common Dog Behaviors, Decoded
May 25, 2017
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iStock

Dogs are a lot more complicated than we give them credit for. As a result, sometimes things get lost in translation. We’ve yet to invent a dog-to-English translator, but there are certain behaviors you can learn to read in order to better understand what your dog is trying to tell you. The more tuned-in you are to your dog’s emotions, the better you’ll be able to respond—whether that means giving her some space or welcoming a wet, slobbery kiss. 

1. What you’ll see: Your dog is standing with his legs and body relaxed and tail low. His ears are up, but not pointed forward. His mouth is slightly open, he’s panting lightly, and his tongue is loose. His eyes? Soft or maybe slightly squinty from getting his smile on.

What it means: “Hey there, friend!” Your pup is in a calm, relaxed state. He’s open to mingling, which means you can feel comfortable letting friends say hi.

2. What you’ll see: Your dog is standing with her body leaning forward. Her ears are erect and angled forward—or have at least perked up if they’re floppy—and her mouth is closed. Her tail might be sticking out horizontally or sticking straight up and wagging slightly.

What it means: “Hark! Who goes there?!” Something caught your pup’s attention and now she’s on high alert, trying to discern whether or not the person, animal, or situation is a threat. She’ll likely stay on guard until she feels safe or becomes distracted.

3. What you’ll see: Your dog is standing, leaning slightly forward. His body and legs are tense, and his hackles—those hairs along his back and neck—are raised. His tail is stiff and twitching, not swooping playfully. His mouth is open, teeth are exposed, and he may be snarling, snapping, or barking excessively.

What it means: “Don’t mess with me!” This dog is asserting his social dominance and letting others know that he might attack if they don’t defer accordingly. A dog in this stance could be either offensively aggressive or defensively aggressive. If you encounter a dog in this state, play it safe and back away slowly without making eye contact.

4. What you’ll see: As another dog approaches, your dog lies down on his back with his tail tucked in between his legs. His paws are tucked in too, his ears are flat, and he isn’t making direct eye contact with the other dog standing over him.

What it means: “I come in peace!” Your pooch is displaying signs of submission to a more dominant dog, conveying total surrender to avoid physical confrontation. Other, less obvious, signs of submission include ears that are flattened back against the head, an avoidance of eye contact, a tongue flick, and bared teeth. Yup—a dog might bare his teeth while still being submissive, but they’ll likely be clenched together, the lips opened horizontally rather than curled up to show the front canines. A submissive dog will also slink backward or inward rather than forward, which would indicate more aggressive behavior.

5. What you’ll see: Your dog is crouching with her back hunched, tail tucked, and the corner of her mouth pulled back with lips slightly curled. Her shoulders, or hackles, are raised and her ears are flattened. She’s avoiding eye contact.

What it means: “I’m scared, but will fight you if I have to.” This dog’s fight or flight instincts have been activated. It’s best to keep your distance from a dog in this emotional state because she could attack if she feels cornered.

6. What you’ll see: You’re staring at your dog, holding eye contact. Your dog looks away from you, tentatively looks back, then looks away again. After some time, he licks his chops and yawns.

What it means: “I don’t know what’s going on and it’s weirding me out.” Your dog doesn’t know what to make of the situation, but rather than nipping or barking, he’ll stick to behaviors he knows are OK, like yawning, licking his chops, or shaking as if he’s wet. You’ll want to intervene by removing whatever it is causing him discomfort—such as an overly grabby child—and giving him some space to relax.

7. What you’ll see: Your dog has her front paws bent and lowered onto the ground with her rear in the air. Her body is relaxed, loose, and wiggly, and her tail is up and wagging from side to side. She might also let out a high-pitched or impatient bark.

What it means: “What’s the hold up? Let’s play!” This classic stance, known to dog trainers and behaviorists as “the play bow,” is a sign she’s ready to let the good times roll. Get ready for a round of fetch or tug of war, or for a good long outing at the dog park.

8. What you’ll see: You’ve just gotten home from work and your dog rushes over. He can’t stop wiggling his backside, and he may even lower himself into a giant stretch, like he’s doing yoga.

What it means: “OhmygoshImsohappytoseeyou I love you so much you’re my best friend foreverandeverandever!!!!” This one’s easy: Your pup is overjoyed his BFF is back. That big stretch is something dogs don’t pull out for just anyone; they save that for the people they truly love. Show him you feel the same way with a good belly rub and a handful of his favorite treats.

The best way to say “I love you” in dog? A monthly subscription to BarkBox. Your favorite pup will get a package filled with treats, toys, and other good stuff (and in return, you’ll probably get lots of sloppy kisses). Visit BarkBox to learn more.

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