Sesame Street 1971 books

[Erine81981]

So your sayin that when they have alots of years and the first one would be 1971. Would that mean all the ones that say other years and have 1971 would mean that all SS books are from 1971? That would be about every book ever published. So how do I get the first ever first one? Like ones that just have one year would mean that its the first one? Could you explain to me the years things in the world of books?