A year page should ideally:

  • be in the category for its century
  • contain a calendar and lists of events (particularly relevant, eg the opening or the destruction of a public record office) and births and deaths as Wikipedia does but just links to separate births and deaths pages when the lists get a bit long
  • link to at least the English WP year page and possibly to the English WP "xxxx Births" etc if any, and to any other pages in any language that users wish to add

Basic structure, calendar, etc, can be copied direct from Wikipedia with the standard ({{enWP|...) acknowledgment.