Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
which existed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which existed" is correct and usable in written English.
It can be used to refer to something that was present or in existence at a certain time in the past. Example: "The ancient civilization, which existed thousands of years ago, left behind remarkable artifacts."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
That led to the creation of a world court, officially the Permanent Court of International Justice, which existed until 1946.
Academia
"Worse than that which existed in South Africa".
News & Media
But Bulgari's customers wanted the necklace, which existed only in the ad.
News & Media
"I don't think that is a problem which existed then and it certainly doesn't exist today.
News & Media
These practices which existed in the past will not exist in the future.
News & Media
"Right now, the same principled objections which existed a year ago exist now," Mr. Brodsky said.
News & Media
Jewish communities, which existed almost everywhere, were especially important in the towns of Champagne and Languedoc.
Encyclopedias
The town developed around these two plants, which existed until the early 1930s.
Encyclopedias
Disagreement which existed were quantitatively explained by taking the isotope effect into account.
Science
Several design and construction deficiencies which existed in the components of temporary structures enabled the failures.
Science
The extent of foreign ownership interest shall not be increased above the extent which existed on May 24 , 1993
Academia
Expert writing Tips
Best practice
Use "which existed" to clearly indicate the past existence of something, especially when contrasting it with its current state or absence.
Common error
Avoid using "which exists" when referring to something that was present only in the past; ensure the tense is consistent with the time frame you are describing. For example, say "the tradition which existed" not "the tradition which exists" if the tradition is now gone.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which existed" functions as a relative clause, modifying a noun by providing additional information about its past state or presence. Ludwig shows its common usage across diverse contexts, adding descriptive detail to past entities or conditions.
Frequent in
News & Media
39%
Academia
21%
Science
20%
Less common in
Encyclopedias
6%
Wiki
6%
Formal & Business
4%
Ludwig's WRAP-UP
In summary, the phrase "which existed" is a grammatically sound and frequently employed relative clause used to specify the past presence or state of something. Ludwig confirms its validity and common usage across various formal contexts, including news, academia, and science. When employing this phrase, ensure that the tense aligns with the historical timeline you're describing. While alternatives like "that was present" or "that used to be" can be suitable substitutes, consider the precise nuance you wish to convey in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that was present
Emphasizes past presence, using a simpler and more direct construction.
that formerly existed
Adds emphasis to the fact that something used to exist, but doesn't anymore.
that used to be
A common phrase indicating past existence, often implying that the thing no longer exists.
that prevailed
Focuses on dominance or common acceptance in the past rather than simple existence.
that once was
Emphasizes that something is no longer present, carrying a slightly poetic tone.
that had been around
Uses a more informal and conversational tone to indicate past existence.
that was the case
Indicates a situation or condition that was factual or real in the past.
that was in effect
Highlights the operational or functional status of something in the past.
that held true
Indicates something was accurate or valid during a specific past period.
that obtained
A more formal way of saying something was in effect or valid at a certain time.
FAQs
How do I use "which existed" in a sentence?
Use "which existed" to describe something that was present or in effect at a particular time in the past. For example: "The custom, "which existed" for centuries, gradually faded away."
What are some alternatives to using "which existed"?
Alternatives include phrases like "that was present", "that formerly existed", or "that used to be". The best choice depends on the specific nuance you want to convey. Consider "The law "that was present" during that era..."
Is it always necessary to use "which existed" when referring to the past?
No, you can often use simpler phrasing if the context makes it clear you are talking about the past. For instance, instead of "the problem "which existed" then", you could simply say "the problem then".
What is the difference between "that existed" and "which existed"?
"Which" is typically used for nonrestrictive clauses (adding extra information), while "that" is used for restrictive clauses (essential information). However, in many contexts, especially in less formal writing, they are used interchangeably. For example: "The house that/which existed was very old"
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested