Events are being held to mark the 1918 Irish general election.
It's 100 years since that election, at which women were permitted to vote and stand in parliamentary elections.
It was also the year in which the first woman was elected to the British Parliament at Westminster.
Countess Constance Markievicz was one of the two women who stood, along with Winifred Carney.
Today marks exactly 100 years since Constance Markievicz became the first woman MP elected to Westminster. The 1918 Election also provided women (over the age of 30) with their right to vote. #Votail100 pic.twitter.com/cDxAiZIzPp
— Frances Fitzgerald (@FitzgeraldFrncs) December 14, 2018
She represented a Dublin constituency, but never took her seat at Westminster.
Instead, she joined the revolutionary first Dáil - becoming the first female Teachta Dála and the first female Minister in Western Europe.
Winifred Carney | Courtesy of Kilmainham Gaol Museum
Winifred Carney stood in a unionist division of Belfast in 1918, but was not elected.
Since 1918, over 200 women have been elected to the Dáil.
There are currently 53 women Members of the Houses of the Oireachtas.
#Vótáil100 - Since 1918, over 200 women have been elected, with 53 women currently Members of the Houses of the Oireachtas. To commemorate this, the Houses of the Oireachtas has released a photo montage of 105 former and current female Members of the Oireachtas. #seeforyourself pic.twitter.com/135IvUgsPN
— Oireachtas News (@OireachtasNews) December 14, 2018
To mark the occasion, Leinster House is holding a mock General Election 1918, based on the Dublin St Stephen's Green constituency.
#Dáil100 - if you are in #LeinsterHouse today make sure you join us for mock General Election 1918 based on the Dublin St. Stephen's Green constituency - will the results be any different this time round #seeforyourself #Election18 pic.twitter.com/NAh5dzLbwX
— Oireachtas News (@OireachtasNews) December 14, 2018
While Justice Minister Charlie Flanagan is hosting a conference in the Convention Centre Dublin to celebrate the centenary.
'We have to ask ourselves what is it in our inherent structures that inhibits women in politics and what are we NOT doing?' Mary McAleese speaking at #PoliticsNeedsWomen pic.twitter.com/V619GE0V9t
— Womenscouncilireland (@NWCI) December 14, 2018