Question: When was the first hydrogen fuel cell created?
Disambiguated questions and answers: question: When did Robert Grove develop the first fuel cell?
When did hydrogen hydrogen fuel cells first start to be referenced?|When was the hydrogen fuel cell first mentioned?|When was the first hydrogen fuel cell first published?
answer: 1842
December 1838
1838
October 1838
Natural Questions answer: 1842 (from the Wikipedia article "Fuel cell vehicle")