8 Ancient Writing Systems That Haven't Been Deciphered Yet

The Indus Valley civilization was one of the most advanced in the world for more than 500 years, with more than a thousand settlements sprawling across 250,000 square miles of what is now Pakistan and northwest India from 2600 BCE to 1900 BCE. It had several large, well-planned cities like Mohenjo-daro, common iconography—and a script no one has been able to understand. 

Over at Nature, Andrew Robinson looks at the reasons why the Indus Valley script has been so difficult to crack, and details some recent attempts to decipher it. Since we don't know anything about the underlying language and there's no multilingual Rosetta stone, scholars have analyzed its structure for clues and compared it to other scripts. Most Indologists think it's "logo-syllabic" script like Sumerian cuneiform or Mayan glyphs. But they disagree about whether it was a spoken language or a full writing system; some believe it represented only part of an Indus language, Robinson writes. 

One team has created the first publicly available, electronic corpus of Indus texts. Another, led by computer scientist Rajesh Rao, analyzed the randomness in the script's sequences. Their results indicated it's most similar to Sumerian cuneiform, which suggests it may represent a language. Read the full article for more details.   

The Indus Valley script is far from the only one to remain mysterious. Here are eight others you might try your hand at deciphering.

1. Linear A

In 1893, British archaeologist Sir Arthur Evans purchased some ancient stones with mysterious inscriptions on them at a flea market in Athens. On a later trip to the excavations at Knossos on the island of Crete, he recognized one of the symbols from his stones and began a study of the engraved tablets being uncovered at various sites on the island. He discovered two different systems, which he called Linear A and Linear B. While Linear B was deciphered in the early 1950s (it turned out to represent an early form of Greek), Linear A, above, has still not been deciphered.

2. Cretan Hieroglyphics


The excavations on Crete also revealed a third type of writing system, with symbols that looked more picture-like than those of the linear scripts. Some of these symbols are similar to elements in Linear A. It is assumed that the hieroglyphic script developed into Linear A, though the two systems were both in use during the same time period.

3. Wadi el-Hol script


In the 1990s, a pair of Yale archaeologists discovered a graffiti-covered cliff wall at the Wadi el-Hol (Gulch of Terror) in Egypt. Most of the inscriptions were in systems they could recognize, but one of them was unfamiliar. It looks like an early transition from a hieroglyphic to an alphabetic system, but it hasn't yet been deciphered.

4. Sitovo inscription


In 1928 a group of woodcutters found some markings carved into a Bulgarian cliffside. They thought the marks indicated hidden treasure, but none was found. Word got around and soon some archaeologists had a look. Later, the head of the expedition was executed for being a secret agent for the Soviets in Bulgaria. One piece of evidence used against him was a strange coded message he had sent to Kiev—actually a copy of the cliffside inscription he had sent to colleagues for scholarly input. It is not clear what language the inscription represents. Thracian, Celtic, Sarmato-Alanian, and Slavic are some of the possibilities scholars have argued for. Another suggestion is that it's simply a natural rock formation.

5. Olmec writing

The Olmecs were an ancient Mexican civilization best known for the statues they left behind: the so-called "colossal heads." In 1999, their writing system was revealed when road builders unearthed an inscribed stone tablet. The tablet shows 62 symbols; some look like corn or bugs, and some are more abstract. It has been dated to 900 B.C., which would make it the oldest example of writing in the Western Hemisphere.

6. Singapore stone


There once was a giant engraved slab made of sandstone at the mouth of the Singapore River. It had been there for 700 years or so when, in 1819, workers uncovered it while clearing away jungle trees. A few scholars got a look at it before it was blown to bits in order to make space for a fort to protect the British settlements. The parts that didn’t end up in the river were eventually used for road gravel, though some fragments were saved. The script hasn't been deciphered, but there have been various suggestions for what language it might represent: ancient Ceylonese, Tamil, Kawi, Old Javanese, and Sanskrit.

7. Rongorongo


When missionaries got to Easter Island in the 1860s, they found wooden tablets carved with symbols. They asked the Rapanui natives what the inscriptions meant, and were told that nobody knew anymore, since the Peruvians had killed off all the wise men. The Rapanui used the tablets as firewood or fishing reels, and by the end of the century they were nearly all gone. Rongorongo is written in alternating directions; you read a line from left to right, then turn the tablet 180 degrees and read the next line.

8. Proto-Elamite

Marie-Lan Nguyen via Wikimedia Commons // CC BY 2.5

This ancient writing system was used more than 5000 years ago in what is now Iran. Written from right to left, the script is unlike any other ancient scripts; while the proto-Elamites appear to have borrowed the idea for a written language from their Mesopotamian contemporaries, they apparently invented their own symbols—and didn't bother to keep track of them in an organized way, proto-Elamite expert and Oxford University scholar Jacob Dahl told the BBC in 2012. Around that time, he and his Oxford colleagues asked for help from the public in deciphering proto-Elamite. They released high-quality images of clay tablets covered in Proto-Elamite, hoping that crowdsourcing could decode them. Now a collaboration involving several institutions, the project is ongoing

10 Rad Gifts for Hikers

Greg Rosenke/Unsplash
Greg Rosenke/Unsplash

The popularity of bird-watching, camping, and hiking has skyrocketed this year. Whether your gift recipients are weekend warriors or seasoned dirtbags, they'll appreciate these tools and gear for getting most out of their hiking experience.

1. Stanley Nesting Two-Cup Cookset; $14

Amazon

Stanley’s compact and lightweight cookset includes a 20-ounce stainless steel pot with a locking handle, a vented lid, and two insulated 10-ounce tumblers. It’s the perfect size for brewing hot coffee, rehydrating soup, or boiling water while out on the trail with a buddy. And as some hardcore backpackers note in their Amazon reviews, your favorite hiker can take the tumblers out and stuff the pot with a camp stove, matches, and other necessities to make good use of space in their pack.

Buy it: Amazon

2. Osprey Sirrus and Stratos 24-Liter Hiking Packs; $140

Amazon

Osprey’s packs are designed with trail-tested details to maximize comfort and ease of use. The Sirrus pack (pictured) is sized for women, while the Stratos fits men’s proportions. Both include an internal sleeve for a hydration reservoir, exterior mesh and hipbelt pockets, an attachment for carrying trekking poles, and a built-in rain cover.

Buy them: Amazon, Amazon

3. Yeti Rambler 18-Ounce Bottle; $48

Amazon

Nothing beats ice-cold water after a summer hike or a sip of hot tea during a winter walk. The Yeti Rambler can serve up both: Beverages can stay hot or cold for hours thanks to its insulated construction, and its steel body (in a variety of colors) is basically indestructible. It will add weight to your hiker's pack, though—for a lighter-weight, non-insulated option, the tried-and-true Camelbak Chute water bottle is incredibly sturdy and leakproof.

Buy it: Amazon

4. Mappinners Greatest 100 Hikes of the National Parks Scratch-Off Poster; $30

Amazon

The perfect gift for park baggers in your life (or yourself), this 16-inch-by-20-inch poster features epic hikes like Angel’s Landing in Zion National Park and Half Dome in Yosemite National Park. Once the hike is complete, you can scratch off the gold foil to reveal an illustration of the park.

Buy it: Amazon

5. National Geographic Adventure Edition Road Atlas; $19

Amazon

Hikers can use this brand-new, updated road atlas to plan their next adventure. In addition to comprehensive maps of all 50 states, Puerto Rico, Canada, and Mexico, they'll get National Geographic’s top 100 outdoor destinations, useful details about the most popular national parks, and points on the maps noting off-the-beaten-path places to explore.  

Buy it: Amazon

6. Adventure Medical Kits Hiker First-Aid Kit; $25

Amazon

This handy 67-piece kit is stuffed with all the things you hope your hiker will never need in the wilderness. Not only does it contain supplies for pain, cuts and scrapes, burns, and blisters (every hiker’s nemesis!), the items are organized clearly in the bag to make it easy to find tweezers or an alcohol wipe in an emergency.

Buy it: Amazon

7. Hiker Hunger Ultralight Trekking Poles; $70

Amazon

Trekking poles will help increase your hiker's balance and stability and reduce strain on their lower body by distributing it to their arms and shoulders. This pair is made of carbon fiber, a super-strong and lightweight material. From the sweat-absorbing cork handles to the selection of pole tips for different terrain, these poles answer every need on the trail. 

Buy it: Amazon

8. Leatherman Signal Camping Multitool; $120

Amazon

What can’t this multitool do? This gadget contains 19 hiking-friendly tools in a 4.5-inch package, including pliers, screwdrivers, bottle opener, saw, knife, hammer, wire cutter, and even an emergency whistle.

Buy it: Amazon

9. RAVPower Power Bank; $24

Amazon

Don’t let your hiker get caught off the grid with a dead phone. They can charge RAVPower’s compact power bank before they head out on the trail, and then use it to quickly juice up a phone or tablet when the batteries get low. Its 3-inch-by-5-inch profile won’t take up much room in a pack or purse.

Buy it: Amazon

10. Pack of Four Indestructible Field Books; $14

Amazon

Neither rain, nor snow, nor hail will be a match for these waterproof, tearproof 3.5-inch-by-5.5-inch notebooks. Your hiker can stick one in their pocket along with a regular pen or pencil to record details of their hike or brainstorm their next viral Tweet.

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12 Surprising Facts About Dictionaries

StanRohrer, iStock via Getty Images
StanRohrer, iStock via Getty Images

At first glance, the dictionary seems pretty straightforward. Words are listed alphabetically, and you simply locate the right page and scan until you find the word you’re looking for. But there’s a lot you might not know about the dictionary, such as how new words are added and why Noah Webster learned Sanskrit to write his dictionary. So without further ado, read on to discover a dozen things you might not know about various dictionaries.

1. It takes a lot of work to add a new word to a dictionary.

very old dictionary cover
Housing Works Thrift Shops, Flickr // CC BY-SA 2.0

When people use a word or phrase frequently enough that it appears in widely read print and online publications, lexicographers take notice. First, they collect citations of the word, documenting the source it appeared in and recording its contextual meaning. Then, lexicographers conduct database research, searching for evidence that people from diverse backgrounds have used the word over a period of time. Finally, dictionary editors review the evidence and decide whether or not to include the new word in an upcoming edition of the dictionary. Thanks to this lengthy process, you can now find modern words such as manspread, presstitute, and athleisure in several dictionaries.

2. The first English dictionaries included difficult words.

Dictionary page with the word 'neanderthaloid.'
Quinn Dombrowski, Flickr // CC BY-SA 2.0

We think of dictionaries as comprehensive tomes containing everything from antelope and apple to zeitgeist and zootrophy, but early English dictionaries didn't contain any simple, common words. In the 16th and 17th centuries, thanks in part to the Renaissance's classical influence, English doubled its vocabulary by incorporating words from other languages. People needed to consult word lists to look up these new, difficult words that they hadn't heard before. In 1604, a teacher named Robert Cawdrey compiled a list of words into A Table Alphabeticall, which defined difficult English words borrowed from Latin, Greek, French, and Hebrew. Throughout the 17th century, other English men published lists of hard words with easy to understand definitions, and people turned to the dictionary to learn these words.

3. Noah Webster learned 26 languages to write his dictionary.

Handwritten drafts of dictionary entries by Noah Webster, circa 1790-1800.
Handwritten drafts of dictionary entries by Noah Webster, circa 1790-1800.
Wikimedia Commons, Public Domain

Although Noah Webster wasn't the first American to produce a dictionary, his name has become synonymous with the American dictionary. Hoping to help create a uniquely American lexicon, with Americanized spelling and pronunciation of words, Webster wrote An American Dictionary of the English Language. To thoroughly research word origins and sources, Webster got serious about becoming an etymology expert. He learned 26 languages, including Sanskrit and Old English, to write his dictionary. Published in 1828, it contained 70,000 entries and included the first definitions of "American" words such as chowder and skunk.

4. The first Merriam-Webster Dictionary cost $6.

Tattered page of an old dictionary.
GCShutter, iStock

After Webster died in 1843, George and Charles Merriam bought the rights to revise Webster's An American Dictionary of the English Language, Corrected and Enlarged. The two brothers printed and sold books in Springfield, Massachusetts, and their intellectual property purchase paid off. In the fall of 1847, the Merriams issued the first revised Webster dictionary for six dollars. The book sold well, and the G. & C. Merriam Co. was eventually renamed Merriam-Webster, Inc. in 1982. Merriam-Webster continues to publish popular print and electronic dictionaries today.

5. It took almost 50 years to create the Oxford English Dictionary.

Picture of a dinosaur in the dictionary.
huppypie, Flickr // CC BY-NC-ND 2.0

In 1857, the Philological Society of London first called for a comprehensive English language dictionary, including words from the 12th century to the present. In 1879, the Philological Society joined forces with Oxford University Press, and work commenced. In 1884, Oxford University Press published the first part of the dictionary (A to Ant), and the final volume was published in 1928. Called A New English Dictionary on Historical Principles, the dictionary listed more than 400,000 words and phrases. Today, the Oxford English Dictionary (OED) is one of the most respected and widely used dictionaries.

6. J.R.R. Tolkien researched word etymologies for the Oxford English Dictionary.

Phrase by JRR Tolkien
Corey Taratuta, Flickr // CC BY 2.0

After serving in World War I, J.R.R. Tolkien worked as an editor's assistant on the OED. His job was to research the etymologies of certain words that started with the letter w. Tolkien also composed multiple drafts of definitions for words such as waggle, walnut, walrus, and waistcoat. After his time at the OED, Tolkien went on to work as an English professor and write The Lord of the Rings. Subsequently, the OED has added terms that Tolkien himself coined, such as hobbit, mithril, and mathom.

7. Fake words sometimes make their way into a dictionary.

Magnifying glass looking at a dictionary.
Alessio_slo, iStock

Due to human error, a handful of fake words have appeared in dictionaries over the centuries. Some words, like phantomnation, which appeared in an 1864 edition of Webster's, are the result of missing hyphens. Others are typographical errors. A 1934 edition of Webster’s New International Dictionary defined dord as density, the result of confusion over spacing. Some dictionary editors have even intentionally included fake words, such as esquivalience in The New Oxford American Dictionary, to protect their copyright.

8. The Oxford English Dictionary needs your help.

Copies of the Oxford English Dictionary
mrpolyonymousvia, Flickr // CC BY 2.0

Although many scholars consider the OED to be the definitive authority on dictionaries, the OED needs your help. At any given time, the dictionary's editors are researching the history of certain words and phrases, and The OED Appeals allows the public to submit evidence (via the comments section) of the earliest record of certain words. Camouflage and Arnold Palmer are two entries that the OED has recently researched, so if you have old books or magazines that mention some weird word, let the OED know. You might just see your contribution in the dictionary's next edition.

9. Sample sentences from dictionaries can make interesting short stories.

A pair of reading glasses on a dictionary.
frankieleon, Flickr // CC BY 2.0

You might think that all those sample sentences in the dictionary are random, but you'd only be partially right. The phrases are deliberately chosen to show the word in a clear context with other words that it's often associated with, and are ideally so boring that you don't even think twice about them. Illustrator Jez Burrows has connected these random sentences from the New Oxford American Dictionary into short stories. "Often I’ll find at least one [word] that makes a good jumping-off point and I’ll start to flesh out some sort of vague narrative, then work backwards to imagine what sort of words might give rise to the sentences I'm looking for," Burrows said of his process.

10. There are a lot of weird dictionaries in existence.

row of dictionaries
Liz West, Flickr // CC BY 2.0

Although most people are familiar with Webster, the OED, and Dictionary.com, there are plenty of obscure or downright bizarre dictionaries. For example, you can find plenty of rhyming dictionaries and reverse dictionaries (that are organized by a theme rather than alphabetized). Scrolling through Wye's Dictionary Of Improbable Words: All-Vowel Words And All-Consonant Words might help you find some uncommon words to win your next Scrabble game. And Mrs. Byrne's Dictionary of Unusual, Obscure, and Preposterous Words contains weird English words that have appeared in at least one dictionary in the past. For example, you might learn that junkettaceous means worthless and cuggermugger means whispered gossiping.

11. Urban Dictionary capitalizes on being a slang haven.

Entry in the Urban Dictionary
Terry Freedman, Flickr // CC BY-NC-ND 2.0

Urban Dictionary, the online, crowdsourced listing of millions of slang words and phrases, is beloved by middle schoolers and anyone trying to understand the latest slang terms. But Urban Dictionary is more than a dictionary. It also has an online store that sells mugs, T-shirts, an official card game, and plush dolls inspired by dirty phrases that the dictionary has helped to popularize (like Golden Shower and Donkey Punch). If you're unfamiliar with the definitions of those disgusting phrases, we'll let you look them up, but don’t say we didn't warn you.

12. A California school district considered banning Merriam-Webster's Collegiate Dictionary.

mrd00dman, Flickr // CC BY-NC 2.0

In 2010, a school district in Southern California temporarily removed all copies of the Merriam-Webster 10th Collegiate Edition from elementary school classrooms. Why remove the dictionary? After a parent told the principal of Oak Meadows Elementary School that the dictionary contained an explicit definition of a sex act, the school district decided to remove the books. A committee of teachers, administrators, and parents decided that the dictionary was age-appropriate, and the copies of Merriam-Webster were returned to the classroom. Here's hoping that parent never discovers Urban Dictionary!

A version of this story first ran in 2016.