History of Jehovah's Witnesses book, "Three Worlds and the Harvest of This World", was published in early 1877. It articulated ideas that remained the teachings of Russell's associates for the next 40 years, many of which are still embraced by Jehovah's Witnesses: it identified a 2520-year-long era called "the Gentile Times", which would end in 1914, and broke from Adventist teachings by advancing Russell's concept of "restitution" — that all humankind since Adam would be resurrected to the earth and given the opportunity for eternal perfect human life. Russell claimed it was the first book to combine biblical end-time prophecies with the concept of
Jehovah Hebrew vowel points of "Adonai" were added to the Tetragrammaton by the Masoretes, and the resulting form was transliterated around the 12th century as "Yehowah". The derived forms "Iehouah" and "Jehovah" first appeared in the 16th century. "Jehovah" was popularized in the English-speaking world by William Tyndale and other pioneer English Protestant translations such as the Geneva Bible and the King James Version. It is still used in some translations, such as the New World Translation, the American Standard Version, and Young's Literal Translation, but it does not appear in most mainstream English translations, as the terms "Lord" or ""