calendar-bahai-all-holidays-flag

calendar-bahai-all-holidays-flag is a variable defined in `calendar.el'.
Its value is

nil

Documentation:
If nil, show only major holidays from the Bahá'í calendar.
These are the days on which work and school must be suspended.
Otherwise, show all the holidays that would appear in a complete Bahá'í
calendar.

You can customize this variable.