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 has long been recognized
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it has long been recognized" is correct and usable in written English.
You can use it to indicate that something has been acknowledged or accepted for a significant period of time. Example: "It has long been recognized that climate change poses a serious threat to our planet."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(20)
it has long been recognised
it has long been understood
it has long been known
it has been widely acknowledged
it is common knowledge
it is a given
it is axiomatic
it goes without saying
it has long been seen
it is common knowledge that
as is practicable
it has been established that
it has long been considered
as is commonly understood
as has been established
better is known
as is ascertained
it's understood that
as everyone knows
it has long been suggested
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
It has long been recognized that these signals can be gainfully used for fault detection.
It has long been recognized that aphasic patients display sentence comprehension deficits.
It has long been recognized that tariff barriers generally reduce the quantity of trade between countries.
Encyclopedias
Whatever the reasons for the distinction, it has long been recognized.
News & Media
It has long been recognized that golf and bridge go well together.
News & Media
For example, it has long been recognized that ENSO can exert an important impact on the East Asian monsoon.
Science
It has long been recognized that conditions exist under which phytoplankton stoichiometry diverges from the canonical Redfield ratio.
Academia
It has long been recognized that coordinate coupling in damped linear systems is a considerable barrier to analysis and design.
Science
It has long been recognized that the thermodynamics of liquid water controls temperature and kinetics of ice crystallization.
Science
It has long been recognized that controller strategies are based on a 'mental picture' or representation of traffic situations.
Science
It has long been recognized that the possibility of future consequences is crucial to the emergence of rational cooperation.
Expert writing Tips
Best practice
Use "it has long been recognized" to introduce an idea or concept that is well-established and accepted within a particular field or context. This phrase adds credibility and emphasizes the existing foundation for your argument or discussion.
Common error
Avoid using "it has long been recognized" in casual or informal writing. This phrase sounds overly formal and can make your writing seem pretentious if used inappropriately. Opt for simpler, more direct language in less formal settings.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it has long been recognized" serves as an introductory device to signal that the information presented is not novel but rather a well-established understanding or fact. As shown by Ludwig AI, it prefaces statements across diverse domains.
Frequent in
Science
76%
News & Media
12%
Encyclopedias
5%
Less common in
Formal & Business
2%
Academia
2%
Unknown/unmatched sources
3%
Ludwig's WRAP-UP
In summary, the phrase "it has long been recognized" is a grammatically correct and widely used expression to introduce established ideas or facts. As confirmed by Ludwig, it's primarily used in formal and scientific writing to lend credibility to subsequent claims. While common in academic and professional contexts, it should be used sparingly in informal settings. Alternative phrases such as "it has long been understood" or "it is widely acknowledged" can be used to convey similar meanings with slight variations in emphasis. Overall, understanding the nuances of this phrase ensures effective and appropriate communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it has long been understood
Focuses on comprehension rather than recognition. It emphasizes the understanding of a concept over its mere acknowledgement.
it has long been known
Similar to "recognized", but emphasizes awareness of a fact or information. It's a more direct statement of knowledge.
it has been widely acknowledged
Shifts the focus to the breadth of agreement, indicating that many people or sources accept the idea.
it has been generally accepted
Emphasizes the consensus surrounding an idea, suggesting broad approval within a relevant community.
it is a well-established fact
States the idea as a proven or confirmed piece of information, highlighting its reliability.
it is a long-standing belief
Highlights the duration and nature of the acceptance, emphasizing that the idea is deeply ingrained.
it is common knowledge
Indicates that the idea is widely known and doesn't require specialized expertise to understand.
it is a given
Presents the idea as a fundamental assumption that requires no further proof or explanation.
it is axiomatic
Suggests that the idea is self-evidently true and serves as a foundation for further reasoning.
it goes without saying
Highlights that the point is so obvious it need not be stated, implying universal agreement.
FAQs
How can I use "it has long been recognized" in a sentence?
You can use "it has long been recognized" to introduce a concept or idea that has been accepted or acknowledged for a considerable time. For example, "It has long been recognized that regular exercise benefits overall health".
What's a more formal way to say "it has long been recognized"?
More formal alternatives include "it has been widely acknowledged", "it has been generally accepted", or "it has been firmly established".
What are some less formal alternatives to "it has long been recognized"?
Less formal alternatives include "it's been known for a while", "people have known for a long time", or "it's common knowledge".
Is "it has long been recognised" also correct?
Yes, "it has long been recognised" is also correct. "Recognised" is the British English spelling, while "recognized" is the American English spelling. Both are acceptable depending on the context.
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