It has been known that vs It has been known as

The phrases are both acceptable, but they would be used in dissimilar contexts. 'It has been known that' is used to introduce a piece of information or a fact, while 'it has been known as' is used to indicate a name or title that something is commonly referred to.

Explained by Gregg
Editor at TextRanch

Last updated: February 19, 2025 • 6049 views

This phrase is correct and commonly used in English to introduce a piece of information or a fact.

"It has been known that "

This phrase is used to introduce a known fact or information. It is often followed by a statement or explanation.

Examples:

It has been known that smoking can cause serious health problems.
It has been known that exercise is good for both physical and mental health.

Show examples from the web [+]

Aug 14, 2015 ... My suggestion on how to improve the wording: 1) It has long been known that ... 2 ) Since time immemorial, it has been known that .
It has been known that certain azo dyes will produce cancer of the liver. During the precancerous stages the liver appears to undergo some definite changes.
For many generations, it has been known that the best defense against infection is proper hand washing. With the increase of resistant microorganisms, the ...
It has been known that mixing of acidic and basic proteins in solution results in the mutual precipitation of these proteins at the. pH values intermediate to their ...

Alternatives:

It is known that
It has been established that
It is a well-known fact that

This phrase is correct and commonly used in English to indicate a name or title that something is commonly referred to.

"It has been known as"

This phrase is used to indicate the name or title by which something is commonly known or referred to.

Examples:

The city is known for its beautiful beaches and is often known as the 'Pearl of the Indian Ocean.'
The disease is commonly known as the 'silent killer.'

Show examples from the web [+]

Congress amended the bill on June 1, 1954, replacing "Armistice" with "Veterans, " and it has been known as Veterans Day since. The National Veterans Award ...
Black tea is a type of tea that is more oxidized than oolong, green and white teas. Black tea is generally stronger in flavor than the less oxidized teas. All four ...
Shchi is a traditional soup of Russia where it has been known as far back as the 9th century, soon after cabbage was introduced from Byzantium. Its popularity in ...
Sep 11, 2015 ... It is important that they changed the name back to Denali because it has been known as Denali for generations and it is apart of their history.

Alternatives:

It is commonly known as
It is referred to as
It is often called

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It has been known that vs It has been known as

"It has been known that "

"It has been known as"

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