The Explorer 237 spacecraft is well known to historians. It was the ship that went to a previously unexplored planet in the Trappist-1 star and returned with all the crew onboard dead and mutilated. The planet concerned, previously known simply as ‘11596’ had been renamed, by the crew of the Explorer to ‘Plasmolidium’.
Unbeknown to the crew at that the time of landing, Plasmolidium was inhabited by the Mud Lizards. After months of peaceful work on the planet, that included establishing a permanent physical base on the surface, the Mud Lizard’s made their presence known. Very quickly they butchered all of the Explorer’s crew who had mistakenly interpreted their initial contact as peaceful.
Not only that, the fairly advanced Mud Lizard civilisation (technologically anyway) returned the dead bodies of the crew to Earth on Explorer 237 with a declaration of war carved into their collective foreheads. This led to the first Interstellar War.
The response from Earth’s President at the time was strong and unequivocal. His rallying cry to Earth that this atrocity would not go unpunished was what people needed to hear, though he did confuse everyone a bit by subsequently issuing thoughts on ThinQueue that seemed to associate Mud Lizards with some sort of Sino-Soviet plot. He was a distant relative of a 21st Century President, so confusion possibly ran in his genes.