Kuyper, Abraham (äˈbrähäm koiˈpər) [key], 1837–1920, Dutch political figure and Calvinist theologian. After holding important pastorates, he became interested in politics and engaged in political and theological controversies. In 1886 he founded the Free Reformed Church. He edited an encyclopedia of sacred theology. Kuyper was first elected to the States-General in 1874 and served a number of terms. He was minister of the interior from 1901 to 1905.