don't know if this is a hint/cheat whatever but i think it's interesting to know.
Bklue/red/ yellow was made 97-99 ish yes?
I'm guessing Pokemon was meant to be set in the future, when Spaceships/Shuttles will be defunct and put in musuems which is all fine and good.
however, in Pewter City's museum, there is a Spaceship or shuttle (I can never remember which one). Space Shuttle Columbia to be exact. the same one that crashed on re-entry in 2003.
unsurprisingly this has been omitted from the FireRed/LeafGreen remakes.
PS: before anyone tries to bite my head off (this has happened elsewhere) I know they couldnt have predicted this several years before hand, i just think it's a neat bit of trivia :)