It is distinct from academic Torah study. Regular public reading of the Torah was introduced by Ezra the Scribe after the return of the Jewish people from the Babylonian captivity (c. 537 BCE), as described in the Book of Nehemiah. In the modern era, adherents of Orthodox Judaism practice Torah-reading according to a set procedure they believe has remained unchanged in the two thousand years since the destruction of the Temple in Jerusalem (70 CE). In the 19th and 20th centuries CE, new movements such as Reform Judaism and Conservative Judaism have made adaptations to the practice of Torah reading, but the basic pattern of Torah reading has usually remained the same: As a part of the morning prayer services on certain days of the week, fast days, and holidays, as well as part of the afternoon prayer services of Shabbat, Yom Kippur, a section of the Pentateuch is read from a Torah scroll. On Shabbat (Saturday) mornings, a weekly section ("parashah") is read, selected so that the entire Pentateuch is read consecutively each year. The division of parashot found in the modern-day Torah scrolls of all Jewish communities (Ashkenazic, Sephardic, and Yemenite) is based upon the systematic list provided by Maimonides in Mishneh Torah, Laws of Tefillin, Mezuzah and Torah Scrolls, chapter 8. Maimonides based his division of the parashot for the Torah on the Aleppo Codex. Conservative and Reform synagogues may read parashot on a triennial rather than annual schedule, On Saturday afternoons, Mondays, and Thursdays, the beginning of the following Saturday's portion is read. On Jewish holidays, the beginnings of each month, and fast days, special sections connected to the day are read. Jews observe an annual holiday, Simchat Torah, to celebrate the completion and new start of the year's cycle of readings. Torah scrolls are often dressed with a sash, a special Torah cover, various ornaments, and a Keter (crown), although such customs vary among synagogues. Congregants traditionally stand in respect when the Torah is brought out of the ark to be read, while it is being carried, and lifted, and likewise while it is returned to the ark, although they may sit during the reading itself. Biblical law The Torah contains narratives, statements of law, and statements of ethics. Collectively these laws, usually called biblical law or commandments, are sometimes referred to as the Law of Moses (Torat Moshɛ ), Mosaic Law, or Sinaitic Law.