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Is It '70s or 70's?

Patricia Jul 20, 2026

When faced with decisions over when to use '70s or '70s, many of us wonder about the appropriateness of apostrophes in representing decades. After all, they seem quite different from their single-digit counterparts, like '90s versus 90s. So, how should we approach this? Let's explore.

31 Things Every Stylish Woman Owned in the 1970s That Would Confuse Gen Z Today
31 Things Every Stylish Woman Owned in the 1970s That Would Confuse Gen Z Today

The debate around '70s versus 70s often hinges on whether decades are considered short forms of 'seventies' or simply a numeric expression. The difference isn't merely semantic, as it can influence the style and tone of your writing or speech.

the 70's were the best of times, and we didn't even know it
the 70's were the best of times, and we didn't even know it

Decades as Short Forms ('Seventies', 'Eighties', etc.)

When considering decades as short forms of numeric words, such as 'seventies', 'eighties', it's customary to use an apostrophe before the numeral. This practice emphasizes the shortened nature of these terms.

1970s Quiz
1970s Quiz

In linguistic terms, this usage is often referred to as a numbered decade. It treats the decimal indicator zero as a silent, implied prefix. Therefore, '70s is the short form of 'seventies, '80s of 'eighties, and so forth.

'70s versus '70s: Variations and Idiosyncrasies

I got You Should Be In The 2000’s! What Decade Do You Belong In?
I got You Should Be In The 2000’s! What Decade Do You Belong In?

While '70s is the most conventional representation, you might also find '70's in some contexts. This variation typically serves a specific function, such as in sporting events, where the latter might represent a particular championship decade (e.g., '80s, '90s, '00s).

In literature and music, the inclusion or exclusion of the apostrophe might also indicate generational or genre-specific preferences. However, these exceptions should not overshadow the overwhelming preference for '70s in general usage.

The Shorthand Argument: '70s versus 70s

an old man standing in front of a van with the words one day, you're 20 in the 70s
an old man standing in front of a van with the words one day, you're 20 in the 70s

On the other hand, those advocating for 70s argue that omitting the apostrophe turns the decade representation into a shorthand without the usually implied numeric sense. They interpret 70s as directly equivalent to 'seventy, suggesting an age or numeric quantity rather than a specific decade.

Proponents of this style prefer the numerals on their own, eschewing the apostrophe for clarity and simplicity. While not as widely used, this style can also convey a particular tone or nuance in certain contexts.

The Role of Style Guides in '70s versus 70s

What To Wear To A 70s Themed Party
What To Wear To A 70s Themed Party

The consistency and clarity promoted by style guides often recommend '70s as the preferred representation. The Associated Press (AP) Stylebook, widely followed in journalism andwriting, adheres to this norm, advising the use of '70s and '80s as standard representations for the decades.

However, it's essential to remember that stylistic preferences may vary, especially in genres or communities with distinct conventions. Always be mindful of your audience and the context of your communication.

the text on this page is very interesting
the text on this page is very interesting
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a poster with an image of a man's head and the words hair on it

Consistency is Key: Once You've Chosen, Stick with It

Regardless of which style you adopt, consistency is crucial in communicating your message effectively. Once you've decided on '70s or 70s, stick with your choice throughout your document or conversation, to avoid unnecessary confusion.

However, it's essential to note that in transcribing or quotes, it's paramount to maintain the original speaker's or source's intended format.

The preference for '70s or 70s may seem trivial, but consistency is a cornerstone of effective communication. By adhering to a consistent and popular norm like '70s, we ensure our writing and speech is widely understood, preserving our intended message and meaning.