Happiness in Judaism name "Hasidim" was coined, one of the names used to refer to the followers of the new movement was "di freilicha" (), “the happy ones.” The founder of Hasidism, Rabbi Yisroel Baal Shem Tov (1698–1760) is quoted as saying "In the eyes of the Hasidim, joy is considered a biblical commandment, a mitzvah." The Hasidic Rebbe, Rabbi Nachman of Breslov (1772–1810) would often say "It is a great mitzvah (commandment) to live in the state of happiness" ("mitzvah gedolah lihiyot b'simcha tamid", ). And Rabbi Aharon of Karlin (I), one of the early Hasidic masters, reportedly said, "There is no
Bar and Bat Mitzvah siddur. In some Modern Orthodox circles, bat mitzvah girls will read from the Torah and lead prayer services in a women's tefillah. Rabbi Moshe Feinstein, a prominent Orthodox "posek," has ruled that bat mitzvah celebrations are permissible, but should not be held in a synagogue, because then they would be construed as imitating Reform and Conservative customs; in any case, they do not have the status of seudat mitzvah. Rabbi Ovadiah Yosef holds that it is a seudat mitzvah. There were occasional attempts to recognize a girl's coming of age in eastern Europe in the 19th and 20th centuries, the