The history of Wales contains many important days that are now celebrated in modern times. Whilst not tying to be a comprehensive list, here are a number of important days to all Welsh people, here in Wales or around the world...
- 25 January, - St Dwynwen's Day, the patron saint for Welsh lovers often known as Welsh St Valentines Day
- 1 March - Our Patron Saints day, St David's Day or Dydd Gwyl Dewi
- 16 September, - Owain Glyndwr's Day, celebrating the anniversary of the beginning of the Welsh rebellion in 1400