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  1. First language - Wikipedia

  2. First Language: Sage Journals

  3. What's the World's Oldest Language? | Scientific American

  4. What Is a First Language? (with pictures) - Language Humanities

  5. What is the difference between native language, first ...

  6. First language - Simple English Wikipedia, the free encyclopedia

  7. Definition and Examples of Native Languages - ThoughtCo

  8. First language acquisition - The Study of Language

  9. FIRST LANGUAGE | Encyclopedia.com

  10. Unlocking education’s potential: First language as a key to ...