Woops, I totally misread your point @SnivyLink. I'll think about it- I think what you suggested is fair, at least to a point. I'd likely want to keep significant years on the main post regardless (ex: keeping 2020, since it's a deccenial year), and then updating a current year map with an archive of past current years in a spoiler tag.While I could theoretically make a series of over 2,021 maps, I'd like to point out it's taken us quite a few years to get to the point where we have a series of 83 maps. While there's certainly more I'd like to do in the future, it's not worth all of our time to make a map for 1100 AD, 1101 AD, 1103 AD.... 1109 AD etc. These are meant to be templates set at significant years, with enough out there that minor changes that need to be made to suit the author's needs are easy enough to make. If someone is doing a timeline that diverges in 1765, they can easily enough make minor alterations from the 1776 or 1750 map.
Also keep in mind most of these maps would have only one or two changes from previous ones. Also, god forbid we decide to go back and do a full revision of a region (like I've done with India or central asia in the past) - it already takes me a long time to implement changes for 83 maps. Doing that for over 2,000 would make me want to delete photoshop off my computer.