Aastapäev
Aastapäev is the date on which a significant event occurred in a previous year, and it recurs annually on the same calendar day. The word is formed from aasta (year) and päev (day), highlighting the yearly repetition of that moment. Aastapäev is used to refer to anniversaries of various kinds, from personal milestones to organizational or historical events. It is distinct from a birthday (sünnipäev), which marks a person’s own birth year, whereas aastapäev marks the anniversary of an event.
In everyday Estonian usage, aastapäev commonly appears in phrases such as the a company’s or institution’s aastapäev
Cultural practice around aastapäevs varies by organization and occasion. Celebrations may include ceremonies, speeches, or publications