"Display holidays for years Y1 to Y2 (inclusive).
The optional list of holidays L defaults to `calendar-holidays'.
+If you want to control what holidays are displayed, use a
+different list. For example,
+
+ (list-holidays 2006 2006
+ (append general-holidays local-holidays other-holidays))
+
+will display holidays for the year 2006 defined in the 3
+mentioned lists, and nothing else.
+
When called interactively, this command offers a choice of
holidays, based on the variables `solar-holidays' etc. See the
documentation of `calendar-holidays' for a list of the variables