During the space race of the 60s, Russia put on its Sputniks some mannequins, which they named “Ivan Ivanovich”.
Turns out, though, that at least one of these “Ivans” wasn’t a mannequin at all.
After conquering space a month before Gagarin, it is unclear what happened to Ivan; like (almost) everyone on the island in Bermudas, he doesn’t remember how he got there at all.