Problem: Sometimes articles are changed a lot of times within a short time frame. In that case, people want to know easily which are the revisions that belong to that time frame, to just look at those.
While this is possible to define this in the history view, the revision slider does not offer any help about it just yet.
On the revision slider, ever xth bar has a label indicating the date of the change. The idea is to have between 4 and 7 labels on the screen, with the most fitting subunit (Time, Day, Month, Year).
Format: For Time and Date, please use (part?) of the usual date format in media wiki. For month, use the month name, and for year, the 4-digit format ("2018").
Warning We are not 100% sure what the best parameters are. This is something we need to discuss once there is something that can be seen and felt. Please discuss the result with WMDE-Design before merging, since we might need to adapt it.
Background: This is part of adding the revision slider to the revision diff page. The revision slider is a feature that adds a visualization of all revisions to the compare screen.
The revision slider was originally prototyped by the WMF Community Tech team and then handed over to the WMDE TCB team, as it is also a solution to fulfill a wish of the German Community Wishlist: https://de.wikipedia.org/wiki/Wikipedia:Umfragen/Technische_W%C3%BCnsche_2015/Artikel#Anzeige_aller_Bearbeitungskommentare_im_Diff