The New World Translation of the Holy Scriptures (NWT) is a translation of the Bible published by the Watch Tower Bible and Tract Society in 1961; it is used and distributed by Jehovah's Witnesses. Though it is not the first Bible to be published by the group, it is their first original translation of ancient Classical Hebrew, Koine Greek, and Old Aramaic biblical texts. As of November 2015, the Watch Tower Society has published 208 million copies of the New World Translation in whole or in part in more than 130 languages.
At the Watch Tower Society's annual meeting on October 5, 2013, a significantly revised translation was released. Many outdated terms were replaced with modern English. The Pericope Adulterae (John 7:53 – 8:11) and the Short and Long Conclusions of Mark 16 (Mark 16:8–20)—offset from the main text in earlier editions—were removed. The new revision was also released as part of an app called JW Library.