Religion in Europe has been a major influence on today's society, art, culture, philosophy and law. The largest religion in Europe is Christianity, but irreligion and practical secularisation are strong. Three countries in Southeastern Europe have Muslim majorities. Ancient European religions included veneration for deities such as Zeus. Modern revival movements of these religions include Heathenism, Rodnovery, Romuva, Druidry, Wicca, and others. Smaller religions include the Dharmic religions, Judaism, and some East Asian religions, which are found in their largest groups in Britain, France, and Kalmykia.