Revisions between 1st & 2nd editions, what date?

[Lori]

Being a librarian can be hard!
I'm trying to update original pub dates on a number of my books (lost in the Amazon updating).
This particular book has a "second edition, with revisions and corrections". Should I use the first edition date? I'm used to new editions with new prefaces and changed bibliographies but I've never seen this before.
Thanks for being so patient with me!

[Cait]

Yes, the original publication date should be the earliest publication date for any edition of the book. (We do combine editions of books with "revisions and corrections"; there's eventually a line where a book has changed enough that it's no longer a new edition of an older book but the first edition of a brand new book with almost entirely new material, but if this edition is billing itself as a "second edition" then that's definitely not the case here.)