Ludwig is an AI-powered English writing assistant that helps you find example sentences, check grammar, and improve your writing using reliable sources from reputable publications.

Is Ludwig free to use?

Ludwig offers both free and premium plans. The free plan provides basic access to our features, while the premium plan unlocks advanced tools, unlimited searches, and additional writing assistance features.

How does Ludwig help with English learning?

Ludwig provides contextual example sentences from reliable sources like The New York Times, BBC, and academic publications, helping you understand how words and phrases are used in real-world contexts. This improves both writing fluency and comprehension skills.

Ludwig is trusted by students, teachers, researchers, and professionals worldwide. It's used by top universities including MIT, Stanford, Harvard, and Oxford, as well as professionals in tech companies like Adobe.

What makes Ludwig different from other writing tools?

Ludwig focuses on providing real example sentences from authoritative sources, not just grammar checking. This contextual approach helps users understand not just what's correct, but how language is actually used by native speakers and professional writers.

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

Known to mankind
Grammar usage guide and real-world examples

USAGE SUMMARY

"known to mankind" is a correct and usable phrase in written English
You can use it to refer to something that is widely known or famous, particularly among humans. For example: The discovery of electricity is one of the most important advances known to mankind.

✓ Grammatically correct

News & Media

Science

Encyclopedias

Wiki

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

Comments: "This is the greasiest crust known to mankind.

News & Media

The Washington Post

Every element known to mankind, in virtually infinite amounts.

News & Media

The Guardian

It is a cheap and thus one of the oldest building materials known to mankind.

Science

Construction and Building Materials

Tuberculosis (TB) is one of the most common and even fatal infectious diseases known to mankind.

Science

Chinese Chemical Letters

BTX is the most potent, naturally occurring toxin known to mankind.

Science

The Journal of Urology

We will develop, build and purchase the best equipment known to mankind.

News & Media

The New York Times

Is there any less natural form of socializing known to mankind?

News & Media

The New York Times

It is one of the most devastating diseases known to mankind".

News & Media

The New York Times - Books

"The sea kayak is one of the most versatile boats ever known to mankind," he said.

News & Media

The New York Times

Taxol® (generic name paclitaxel) represents one of the most clinically valuable natural products known to mankind in the recent past.

Science

Trends in Biotechnology

Another firm, Green Street Advisors, recently called suburban office property the "worst real estate business known to mankind".

News & Media

The New York Times

Expert writing Tips

✓ Best practice

Use "known to mankind" to emphasize the impact or relevance of something to the entire human species, particularly when discussing shared experiences, discoveries, or challenges.

⚠ Common error

Avoid using "known to mankind" in casual conversations or informal writing; opt for simpler alternatives like "everyone knows" or "well-known" to maintain a natural tone.

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Linguistic Context

The phrase "known to mankind" functions as a post-modifier, adding descriptive detail to a noun. According to Ludwig, this is a perfectly usable phrase. It indicates something that is recognized, experienced, or understood by humans collectively.

Expression frequency: Very common

✓ Frequent in

News & Media

43%

Science

35%

Wiki

⚠ Less common in

Encyclopedias

Formal & Business

Reference

Ludwig's WRAP-UP

The phrase "known to mankind" is a grammatically sound and commonly used expression, as also stated by Ludwig AI. It serves to emphasize that something is widely recognized, experienced, or understood by humans collectively. While generally appropriate for formal and neutral contexts, it should be used sparingly in informal settings. Alternative phrases such as "known to humanity" can offer a more inclusive alternative, while phrases like "common knowledge" provide simpler options for casual use. When employing "known to mankind", it's essential to consider the intended audience and the desired level of formality to ensure effective communication.

Alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

known to humanity

Direct synonym, replacing "mankind" with "humanity" for broader inclusivity.

known to the human race

Replaces "mankind" with "the human race" for similar meaning, slightly more formal.

common knowledge

Focuses on the widespread understanding of something, implying it's generally known.

widely recognized

Emphasizes the broad acknowledgement of something's existence or importance.

universally acknowledged

Highlights the near-complete agreement or awareness of something.

globally understood

Focuses on international recognition or comprehension.

More alternative expressions(6)

known to civilization

known to crowd

known to male

known to planet

known to civilisation

known to history

FAQs

How can I use "known to mankind" in a sentence?

You can use "known to mankind" to describe things like discoveries, diseases or natural resources. For example, "The printing press was one of the most important inventions "known to mankind"."

What's a more inclusive alternative to "known to mankind"?

To be more inclusive, you can use "known to humanity" instead, which avoids the gendered term "mankind".

When is it appropriate to use the phrase "known to mankind"?

It is appropriate to use ""known to mankind"" in formal writing or when emphasizing the impact on all of humanity. However, avoid it in informal contexts where it may sound overly dramatic.

Which is correct, "known to mankind" or "known by mankind"?

"Known to mankind" is the correct and more common phrasing. "Known by mankind" is less frequently used and can sound awkward.

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.

Continue with Googlefor free

Continue with emailfor free

Table of contents

Usage summary

Human-verified examples

Expert writing tips

Linguistic context

Ludwig's wrap-up

Alternative expressions

FAQs

Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences:

1-200 1k 2k 3k 4k 5k 7k 10k 20k 40k 100k 200k 500k 0m-3 0m-4 1m-1 1m-2 1m-3 1m-4

Known to mankindGrammar usage guide and real-world examples

Known to mankind
Grammar usage guide and real-world examples