This is the time line I used for "Their World". It includes the reference citations, as well, so you know what's canon, what's "real world" fact, and what I deduced from the two. Dates and some places for episodes are gleaned from hints in the show itself - calendars, signs, even growing seasons. This is still a WIP, as I'm writing Their World.
Some of the abbreviations are as follows:
|EARLY YEARS||THE 60s||THE 70s||THE SHOW||CITATIONS|