5 Quick Facts About the Hashtag

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The use of the hashtag as a Twitter tool to denote a specific topic in order for the masses to follow along turns 10 years old today, having first been suggested (in a Tweet, naturally) by Silicon Valley regular and early adopter Chris Messina back in 2007. Here’s a little history on its evolution from the humble numerical sign to the social media giant it is today.

1. IT COMES FROM THE LATIN TERM FOR “POUND WEIGHT.”

There’s no definitive origin story for the hash (or pound) symbol, but one belief is that when 14th-century Latin began to abbreviate the term for pound weight—libra pondo—to “lb,” a horizontal slash was added to denote the letters were connected. (The bar was called a tittle.) As people began to write more quickly, the letters and the tittle became amalgamated, eventually morphing into the symbol we see today.

2. IT SHOULD ACTUALLY BE CALLED AN OCTOTHORPETAG.

The symbol portion of the hashtag eventually made its way to dial-button telephones, the result of AT&T looking forward to phones interacting with computers. In order to complete a square keypad with 10 digits (including 0), they added the numerical sign and an asterisk. AT&T employee Don MacPherson thought the sign needed a more official name, so he chose Octothorpe—“octo” because it has eight points, and “thorpe” because he was a fan of football hero Jim Thorpe.

3. TWITTER WASN’T BIG ON THE IDEA AT FIRST.

When web marketer Messina had the notion to add hashtags to keep track of conversations, he stopped by Twitter’s offices to make an informal pitch. He came at a bad time: Co-founder Biz Stone was trying to get the software back online after a crash and dismissed the idea with a “Sure, we’ll get right on that” burn. Undeterred, Messina started using them and the habit caught on.

4. IT’S IN THE OXFORD DICTIONARY.

By 2014, respect for the hashtag had grown to the point where the venerable Oxford English Dictionary gave the word its stamp of approval. Their entry: "hashtag n. (on social media web sites and applications) a word or phrase preceded by a hash and used to identify messages relating to a specific topic; (also) the hash symbol itself, when used in this way."

5. THERE ARE SOME HASHTAG ALL-TIMERS.

Hashtags can highlight interest in everything from political movements to breaking news stories, but the frequency of their use is often tied into popular culture. The most popular TV-related tag has been #TheWalkingDead; #StarWars sees a lot of action; and #NFL dominates sports-related Tweets.  

40 Words That Start With X

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When the lexicographer Dr. Samuel Johnson put together his Dictionary of the English Language in 1755, there weren't a lot of words that started with X; he even included a disclaimer at the bottom of page 2308 that read, “X is a letter which though found in Saxon words, begins no word in the English language.” Noah Webster went one better when he published his Compendious Dictionary in 1806 that included a single X-word, xebec, defined as “a small three-masted vessel in the Mediterranean Sea.” Although, by the time he compiled his landmark American Dictionary in 1828, that total had risen to 13.

X has never been a common initial letter in English, and even with today’s enormous vocabulary you can still only expect around 0.02 percent of the words in a dictionary to be listed under it. But why not try boosting your vocabulary with these 40 words that start with X.

1. X

On its own, the letter X is listed in the Oxford English Dictionary as a verb meaning “to cross out a single letter of type.” X. X. in Victorian slang meant “double-excellent,” while X. X. X. described anything that was “treble excellent.”

2. XANTHIPPE

Xanthippe was the name of Socrates’ wife, who, thanks to a number of Ancient Greek caricatures, had a reputation for henpecking, overbearing behavior. Consequently her name can be used as a byword for any ill-tempered or cantankerous woman or wife—as used in Shakespeare’s Taming of the Shrew.

3. XANTHOCOMIC

Explosion of yellow powder against a white background
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Xanthos was the Ancient Greek word for yellow, and as such is the root of a number of mainly scientific words referring to yellow-colored things. So, if you’re xanthocomic, you have yellow hair; if you’re xanthocroic you have fair hair and pale skin; and if you’re xanthodontous, you have yellow teeth.

4. X-CATCHER

In old naval slang, an X-catcher or X-chaser was someone who was good at math—literally someone good at working out the value of x.

5. X-DIVISION

Victorian slang for criminals or pickpockets, or people who make a living by some underhand means.

6. X-DOUBLE-MINUS

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1960s slang for something really, really terrible.

7. XENAGOGUE

Derived from the same root as xenophobia, a xenagogue is someone whose job it is to conduct strangers or to act as a guide while…

8. XENAGOGY

… a xenagogy is a guidebook.

9. XENIAL

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The adjective xenial is used to describe a friendly relationship between two parties, in particular between a hospitable host and his or her guests, or diplomatically between two countries.

10. XENIATROPHOBIA

Don’t like going to see doctors you don’t know? Then you’re xeniatrophobic.

11. XENIUM

A xenium is a gift or offering given to a stranger, which in its native Ancient Greece would once have been a lavish feast or a refreshing spread of food and fruit. In the 19th century art world, however, xenium came to refer to a still-life painting depicting something like a extravagant display of food or a bowl of fruit.

12. XENIZATION

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A 19th century word meaning “the act of traveling as a stranger.”

13. XENOCRACY

A government formed by foreigners or outsiders is a xenocracy. A member of one is a xenocrat.

14. XENODOCHEIONOLOGY

Defined as “the lore of hotels and inns” by Merriam-Webster.

15. XENODOCHIUM

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A guesthouse or hostel, or any similar stopping place for travelers or pilgrims.

16. XENODOCHY

A 17th century word for hospitality. If you’re xenodochial then you like to entertain strangers.

17. XENOGLOSSY

The ability to speak a language that you’ve apparently never learnt.

18. XENOLOGY

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The scientific study of extraterrestrial phenomena is xenology. The study of extraterrestrial life forms is xenobiology.

19. XENOMANIA

The opposite of xenophobia is xenomania or xenophilia, namely an intense enthusiasm or fondness for anything or anyone foreign.

20. XENOMORPH

Something unusually or irregularly shaped is a xenomorph—which is why it’s become another name for the eponymous creature in the Alien film franchise.

21. XENOTRANSPLANTATION

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Transplanting organic matter from a non-human into a human (like a pig’s heart valve into a human heart) is called xenotransplantation. Whatever it is that’s transplanted is called the xenograft.

22. XERIC

An ecological term used to describe anywhere extremely dry or arid. If it’s xerothermic, then it’s both dry and hot.

23. XERISCAPE

If you live in a xeric area, then you’ll have to xeriscape your garden. It’s the deliberate use of plants that need relatively little moisture or irrigation to landscape an arid location.

24. XEROCHILIA

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The medical name for having dry lips. Having a dry mouth is xerostomia.

25. XEROCOPY

A xerographic copy of a document—or, to put it another way, a photocopy.

26. XEROPHAGY

The eating of dry food is xerophagy. It mightn’t sound like it, but it was originally a religious term.

27. XESTURGY

The proper name for the process of polishing.

28. XILINOUS

A pile of soft cotton against a white background
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Something described as xilinous resembles or feels like cotton …

29. XIPHOID

… while something described as xiphoid resembles a sword.

30. XOANON

Derived from the Greek for “carve” or “scrape,” a xoanon is a carved idol of a deity.

31. XTAL

Large double quartz crystal against a white background
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An abbreviation of “crystal,” according to the OED.

32. XYLOGRAPHER

A 19th century word for a wood engraver.

33. XYLOID

Why say that something is “woody” when you can say that it’s xyloid?

34. XYLOPOLIST

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A 17th century formal name for a timber merchant.

35. XYLOTOMOUS

Describes anything or anyone particularly good at wood-cutting or wood-boring.

36. XYRESIC

Means “razor-sharp.”

37. XYROPHOBIA

A pile of razor blades
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The fear of being close to or touching sharp implements.

38. XYLANTHRAX

Nowhere near as nasty as it sounds, this is just an old name for what we now call charcoal.

39. XYSTUS

A type of covered walkway or portico.

40. X.Y.Z.

Late 19th century slang for a journalist who takes on any work going, or else 18th century slang for a dandyish or “exquisite” young man.

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