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
it was then when
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it was then when" is correct and usable in written English.
You can use it to describe an event that happened at a specific point in time. For example, "It was then when the crowd erupted in applause."
✓ Grammatically correct
News & Media
Academia
Alternative expressions(20)
that was the moment
that's when it happened
at that point
it all started then
it began at that time
that was when it became clear
then i realized
at that juncture
it was even when
it was later when
it was now when
it was best when
it was also when
it was afterward when
it was finally when
it was before when
it was then why
it was there when
it was afterwards when
it was so when
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
36 human-written examples
Its waiting room is as busy as it was then when Citizens Advice helped 14,000 people.
News & Media
It was then when a problem was discovered.
Academia
It was then when I went on a run.
News & Media
It was then, when you looked around the congregation, the most tears appeared in people's eyes".
News & Media
It was then when Mayer climbed past Warner into silver position with a 5.40m clearance.
News & Media
He told them that it was then, when he finally got back, that he cried.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
24 human-written examples
It's then — when there are still a disproportionate number of picture cards and tens left to be played — that a card counter dramatically raises his bets.
News & Media
How sad it is, then, when the product or service is finally introduced and the only reaction in the marketplace is a resounding ker-flop.
News & Media
If you think it is, then when you look into outer space the stars appear to be billions of years old.
News & Media
And you say to yourself 'here I have everything!' But then that final point is missing and it's then when you have to make a decision: either go out and win or develop players".
News & Media
It is then when his second chance is most likely to be judged.
News & Media
Expert writing Tips
Best practice
When using "it was then when", ensure that the sentence clearly establishes the context and significance of the event being described. This phrase is most effective when it highlights a turning point or a moment of realization.
Common error
Avoid using "it was then when" in simple narratives where a more direct chronological phrasing would suffice. Overusing this phrase can make your writing sound repetitive and less engaging. Instead, consider using simpler alternatives like "then" or "at that moment".
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it was then when" functions as an adverbial phrase introducing a clause that specifies the time at which a particular event or realization occurred. It provides emphasis on the timing of the event, as seen in Ludwig's examples.
Frequent in
News & Media
62%
Academia
15%
Wiki
10%
Less common in
Science
8%
Formal & Business
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "it was then when" is a grammatically sound phrase used to emphasize a specific moment in time. As Ludwig AI confirms, the phrase is correct and usable in English. Its primary function is to highlight the timing of a significant event or realization, commonly found in news and media contexts. While useful for adding emphasis, it's important to avoid overuse and consider simpler phrasing options like "then" or "at that moment" for clearer and more concise writing. Remember to use "it was then when" when you want to draw specific attention to a turning point in a narrative.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that's when it happened
Replaces the initial phrase with a more direct declaration of the event's timing.
that was the moment
Emphasizes the specific point in time when something significant occurred.
it all started then
Highlights the beginning of a series of events from that particular time.
it began at that time
Similar to 'it all started then' but with a slightly more formal tone.
that was when it became clear
Focuses on the moment of realization or understanding.
then i realized
Shifts the perspective to a personal realization at a specific time.
that's when i understood
Similar to 'then I realized' but emphasizes understanding.
it was at that point that
A more formal way of indicating a specific moment in time.
the time had come when
Indicates the arrival of a long-awaited or decisive moment.
at that juncture
A more concise and formal alternative to specify a particular point in time.
FAQs
How can I use "it was then when" in a sentence?
Use "it was then when" to emphasize a specific moment or turning point. For example, "It was then when I realized the importance of hard work."
What are some alternatives to "it was then when"?
You can use alternatives such as "that was the moment", "that's when it happened", or "at that point" depending on the context.
Is "it was then when" grammatically correct?
Yes, "it was then when" is grammatically correct, although sometimes simpler phrasing might be more effective. The phrase is used to highlight a specific point in time when something occurred.
What is the difference between "it was then when" and "then"?
"It was then when" is more emphatic and specific, highlighting a particular moment. "Then" is a more general chronological marker. Using "it was then when" can add emphasis and importance to the moment being described compared to simply using "then".
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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested