On April 18, 1949, the Republic of Ireland Act went into force, creating a republic in the state of Ireland. The Act repealed the Executive Authority Act, which had given governing authority in Ireland to the King of England.

On April 18, 1958, treason charges against American poet Ezra Pound, first laid in 1943 in connection with his wartime broadcasts for the Italian Fascist government of Benito Mussolini, were dropped.

Read Jonas Doberman, The Treason Debate: Ezra Pound and his Rome Radio Broadcasts[PDF].