Format: {{Year nav topic|1=year#|2=subject|3=subj2}}
Format: {{Year nav topic|year#|subj1|subj2|subj3|subj4}}
Takes multiple parameters: the year# (year 101 or higher),
followed by the main subject (such as: music), followed by optional related subjects, separated by vertical bars:
The year# becomes the bolded center of the 20-year range for the main subject, and any (optional) related subjects are displayed with a 6-year selection range.
For the first subject "xxx" there should be an article (or redirection) using the name "List_of_years_in_xxx" (which is the top line displayed in the navigation-box).
For the first subject "xxx" there should be a specific all-years navigation article using the name "Table_of_years_in_xxx" (the "table" link displayed in box), which has a compressed table linking all year/decade articles about the subject (such as: "Table of years in film").
The box width expands 5%-15% for optional subjects, widening to fit longer names (such as "archaeology" or "video gaming").
If the year is omitted and the other parameters are specified with 2=, 3=, etc., the year will be automatically filled in from the page title. If no year is found in the page title, 1700 will be used.
