Hasidic Judaism was founded by Yisroel ben Eliezer (1700–1760), also known as the "Ba'al Shem Tov" (or "Besht"). It originated in a time of persecution of the Jewish people when European Jews had turned inward to Talmud study; many felt that most expressions of Jewish life had become too "academic", and that they no longer had any emphasis on spirituality or joy. Its adherents favored small and informal gatherings called Shtiebel, which, in contrast to a traditional synagogue, could be used both as a place of worship and for celebrations involving dancing, eating, and socializing. Ba'al Shem Tov's disciples attracted many followers; they themselves established numerous Hasidic sects across Europe. Unlike other religions, which typically expanded through word of mouth or by use of print, Hasidism spread largely owing to Tzadiks, who used their influence to encourage others to follow the movement. Hasidism appealed to many Europeans because it was easy to learn, did not require full immediate commitment, and presented a compelling spectacle. Hasidic Judaism eventually became the way of life for many Jews in Eastern Europe. Waves of Jewish immigration in the 1880s carried it to the United States. The movement itself claims to be nothing new, but a "refreshment" of original Judaism. As some have put it: ""they merely re-emphasized that which the generations had lost"". Nevertheless, early on there was a serious schism between Hasidic and non-Hasidic Jews. European Jews who rejected the Hasidic movement were dubbed by the Hasidim as Misnagdim, (lit. "opponents"). Some of the reasons for the rejection of Hasidic Judaism were the exuberance of Hasidic worship, its deviation from tradition in ascribing infallibility and miracles to their leaders, and the concern that it might become a messianic sect. Over time differences between the Hasidim and their opponents have slowly diminished and both groups are now considered part of Haredi Judaism. In the late 18th century CE, Europe was swept by a group of intellectual, social and political movements known as the Enlightenment. The Enlightenment led to reductions in the European laws that prohibited Jews to interact with the wider secular world, thus allowing Jews access to secular education and experience. A parallel Jewish movement, Haskalah or the "Jewish Enlightenment", began, especially in Central Europe and Western Europe, in response to both the Enlightenment and these new freedoms.