I'm very rusty in this area, but I thought that people had given credit for Poincare for precursors. Some Googling revealed this page: https://en.wikipedia.or

I'm very rusty in this area, but I thought that people had given credit for Poincare for precursors. Some Googling revealed this page: https://en.wikipedia.org/wiki/Relativity_priority_dispute https://en.wikipedia.org/wiki/Relativity_priority_dispute