Why do I see research being republished in Springer?
I don't know what book you're looking at, but it could be a reprint volume. These are, as their name indicates, collections of reprinted works. They are usually reprinted works of some famous person (example), or they might be works which the editor of the volume has decided are worth including (example).
These books will usually make it quite clear the works contained are reprints though, so there should be no confusion over the date the original work was published.