A public holiday of a country.
:country- the ISO 3166-1 alpha-2 code as an upper case atom, for example:FR:id- a stable identifier, for example"FR-NEWYEARSDAY-01". Two holidays of a country can share a date but never an id within a year:date- the calendar date of the holiday:observed_date- the day actually taken off when the country moves a holiday that falls on a week-end. Equal to:datewhen there is no such rule:local_name- the name in the language of the country:english_name- the name in English