Question: What country was created under a government act in 1920?

<P0-S0> This is a list of High Sheriffs of Carmarthenshire. <P0-S1>  Carmarthenshire was originally created by the Statute of Rhuddlan in 1284. <P0-S2>  It became an administrative county in 1889 with a county council following the Local Government Act 1888. <P0-S3>  Under the Local Government Act 1972, the administrative county of Carmarthenshire was abolished on 1 April 1974 and the area of Carmarthenshire became three districts within the new county of Dyfed : Carmarthen, Dinefwr and Llanelli. <P0-S4>  Under the Local Government (Wales) Act 1994, Dyfed was abolished on 1 April 1996 and the three districts united to form a unitary authority which had the same boundaries as the original Carmarthenshire but remaining in the shrievalty of Dyfed. <SEP> <P1-S0>  It was created as a separate legal entity on 3 May 1921, under the Government of Ireland Act 1920. <P1-S1>  The new autonomous Northern Ireland was formed from six of the nine counties of Ulster: four counties with unionist majorities and two counties, Fermanagh and Tyrone, which had slight Irish nationalist majorities (of 53.6% and 54.6% respectively in the 1918 election). <P1-S2> Northern Ireland is one of the four countries of the United Kingdom (although it is also described by official sources as a province or a region), situated in the northeast of the island of Ireland. <P1-S3>  The remaining three Ulster counties with larger nationalist majorities were not included. <P1-S4>  In large part unionists, at least in the northeast, supported its creation while nationalists were opposed. <SEP> <P2-S0> The County of London was a county of England from 1889 to 1965, corresponding to the area known today as Inner London. <P2-S1>  It was created as part of the general introduction of elected county government in England, by way of the Local Government Act 1888. <P2-S2>  The Act created an administrative County of London, which included within its territory the City of London. <P2-S3>  However, the City of London and the County of London formed separate ceremonial counties for "non-administrative" purposes. <P2-S4>  The local authority for the county was the London County Council (LCC), which initially performed only a limited range of functions, but gained further powers during its 76-year existence. <P2-S5>  The LCC provided very few services within the City of London, where the ancient Corporation monopolised local governance. <P2-S6>  In 1900 the lower-tier civil parishes and district boards were replaced with 28 new metropolitan boroughs. <P2-S7>  The territory of the county was 74903 acre in 1961. <P2-S8>  During its existence there was a long-term decline in population as more residents moved into the outer suburbs; there were periodic reviews of the local government structures in the greater London area and several failed attempts to expand the boundaries of the county. <P2-S9>  In 1965, the London Government Act 1963 replaced the county with the much larger Greater London administrative area. <SEP> <P3-S0>  5 c. 67) was an Act of the Parliament of the United Kingdom. <P3-S1> The Government of Ireland Act 1920 (10 & 11 Geo. <P3-S2>  The Act's long title was "An Act to provide for the better government of Ireland"; it is also known as the Fourth Home Rule Bill or (less accurately) as the Fourth Home Rule Act.