id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-4092 Ireland - Wikipedia .html text/html 22358 2682 69 A war of independence in the early 20th century was followed by the partition of the island, creating the Irish Free State, which became increasingly sovereign over the following decades, and Northern Ireland, which remained a part of the United Kingdom. A similar genetic replacement happened with lineages in mitochondrial DNA.[20][35] This conclusion is supported by recent research carried out by the geneticist David Reich, who says: "British and Irish skeletons from the Bronze Age that followed the Beaker period had at most 10 percent ancestry from the first farmers of these islands, with other 90 percent from people like those associated with the Bell Beaker culture in the Netherlands." He suggests that it was Beaker users who introduced an Indo-European language, represented here by Celtic (i.e. a new language and culture introduced directly by migration and genetic replacement).[23] ./cache/en-wikipedia-org-4092.html ./txt/en-wikipedia-org-4092.txt