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  1. H - Wikipedia

  2. A Brief History Of The Letter H - Dictionary.com

  3. Learn The Letter H | Let's Learn About The Alphabet | Phonics …

  4. H | History, Etymology, & Pronunciation | Britannica

  5. H Definition & Meaning | Dictionary.com

  6. H definition and meaning | Collins English Dictionary

  7. Hydrogen - Wikipedia

  8. H noun - Definition, pictures, pronunciation and usage notes

  9. H - Simple English Wikipedia, the free encyclopedia

  10. Hydrogen | Properties, Uses, & Facts | Britannica