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
in that era
Grammar usage guide and real-world examplesUSAGE SUMMARY
"in that era" is correct and usable in written English.
It can be used to refer to a specific time period in the past. For example, "In that era, technology was much less advanced than it is now."
✓ Grammatically correct
News & Media
Alternative expressions(20)
during that period
at that time
in those days
in that age
back then
in that time frame
in that epoch
during that age
at that stage
under those circumstances
in that century
in that moment
in that phase
at that juncture
in that stage
in that houses
at that point
at approximately that time
during that timeframe
around that time
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
Society itself has changed in that era.
News & Media
"In that era, you didn't do that".
News & Media
I didn't come up in that era.
News & Media
(Beer in that era was normally stored in wooden kegs).
News & Media
In that era, Zynga and Facebook were closely tied.
News & Media
"In that era the Giants were ground-oriented".
News & Media
You grew up in neighboring Medford in that era.
News & Media
In that era, it was still a male-dominated industry.
News & Media
About 100 reactors were abandoned during construction in that era.
News & Media
Scargill himself seemed to have stayed fixed in that era.
News & Media
"But you scored 30 a game in that era".
News & Media
Expert writing Tips
Best practice
Use "in that era" to provide historical context or to emphasize how conditions or practices have changed over time. For example, "In that era, smoking was permitted in most public spaces."
Common error
Ensure you are using "era" to refer to a period of time, not "error" which means a mistake. Proofread your writing to catch this typo, as it can significantly alter the meaning of your sentence.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in that era" functions as an adverbial phrase, modifying a verb or clause by specifying the time frame in which an action or state occurred. This is validated by Ludwig AI, with numerous examples illustrating its usage.
Frequent in
News & Media
75%
Wiki
10%
Science
5%
Less common in
Formal & Business
3%
Encyclopedias
2%
Social Media
1%
Ludwig's WRAP-UP
In summary, "in that era" is a versatile phrase used to specify a particular time period in the past. Ludwig AI confirms its correctness and usability in various writing contexts. It functions as an adverbial phrase, setting the stage for comparisons or historical narratives. While generally neutral, its use is most prevalent in news and media, followed by Wiki and Science, as derived from a thorough analysis of numerous real-world examples. Common alternatives include "during that period" and "at that time". When writing, be mindful of the distinction between "era" and "error" to avoid misspellings. This phrase is a reliable way to add historical context to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
during that period
Replaces "era" with "period", offering a more general term for time.
at that time
Uses a simpler structure focusing on a specific point in the past.
in those days
Emphasizes a more distant or nostalgic past.
back then
Informal and concise way to refer to a past time.
in that time frame
More specific about the duration of the period.
in that epoch
Uses a more formal and less common term than "era".
during that age
Substitutes "era" with "age", providing a slightly broader scope.
in that historical context
Highlights the historical setting of the period.
at that stage
Refers to a specific phase within a broader time period.
under those circumstances
Shifts focus to the conditions prevalent during that time.
FAQs
How can I use "in that era" in a sentence?
Use "in that era" to set a historical context. For example, "In that era, people communicated primarily through letters."
What are some alternatives to "in that era"?
You can use phrases like "during that period", "at that time", or "in those days" depending on the specific nuance you want to convey.
Is "in that era" formal or informal?
"In that era" is generally considered neutral and can be used in both formal and informal contexts, though more formal alternatives like "during that period" may be preferred in academic writing.
What's the difference between "in that era" and "in that age"?
While similar, "in that era" typically refers to a more specific and defined period, whereas "in that age" can imply a broader, less defined span of time.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested