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
Mitzvah Day International became familiar with through the Temple Israel of Hollywood synagogue back to the UK. Though the Mitzvah Day she was familiar with (and most Mitzvah Days in the US) was based around a single community or congregation, her concept for Mitzvah Day in the UK was to unite Jewish community and other groups around a single coordinated day of social action across the country. Mitzvah Day was originally associated with the Jewish Community Centre for London, and became registered as an independent charity in the United Kingdom in 2008. Mitzvah Day has been publicly endorsed by many public figures in