Twitter users were fuming after a British politician "wrote the Irish out of history" with an embarrassing gaffe.
Conservative MP Matt Hancock wrongly claimed that Nancy Astor was the first woman elected to the UK Parliament - an honour that belongs to Irish politician Constance Markievicz.
Mr Hancock, who is currently Secretary of State for Health and Social Care, made the mistake on Twitter this morning.
He wrote: "100 years ago today, the first female MP, Nancy Astor, was elected to [Parliament].
"The female Conservative candidates standing in this election are exceptional & I look forward to working with them in [Parliament] to achieve further progress on gender equality across our society."
However the first woman elected to the Westminster Parliament was in fact Sinn Fein's Constance Markievicz in 1918 - but the famous revolutionary leader refused to take her seat.
And the mistake provoked a huge reaction on social media, with some accusing the Tory MP of "writing the Irish out of history".
One user wrote: "Correction: In 1918, Constance Markievicz was the first woman elected to the House Of Commons.
"As an Irish nationalist she refused to take her seat. In 1919, Sinn Féin set up the Revolutionary Dáil – where the Countess was appointed Minister for Labour."
While another said: "She wasn't the first woman elected to Parliament, that was Constance Markievicz. Stop writing the Irish out of history."
A third added: "The first woman elected to Westminster was Constance Georgine Markievicz, known as Countess Markievicz, she was an Irish politician, revolutionary, nationalist, suffragist, socialist. Perhaps you could correct your tweet."
