A century ago today women in Iceland were officially granted the right to vote in elections—among the first few countries in the world to grant the right that today seems immutable.

The anniversary marks the day the King of Denmark and Iceland approved the bill passed by Alþingi. Though a big step towards voting equality, it only gave the vote to 12,000 women aged 40 or over.

Parliament will hold a ceremonial meeting today to mark the day; and all male and female MPs will be invited—despite a proposal made recently to make it a women-only parliament.

Today is the high-point of a year-long schedule of events to celebrate women’s suffrage.