Image: The Venus of Willendorf is an 11.1-centimetre-high (4.4 in) statuette of a female figure estimated to have been made between about 28,000 and 25,000 BCE.(Venus of Willendorf)
From The Doctrine and Covenants section 77. Question and answer session regarding the revelations of St. John:
6 Q. What are we to understand by the book which John saw, which was sealed on the back with seven seals?
A. We are to understand that it contains the revealed will, mysteries, and the works of God; the hidden things of his economy concerning this earth during the seven thousand years of its continuance, or its temporal existence.—
12 Q. What are we to understand by the sounding of the trumpets, mentioned in the 8th chapter of Revelation?
A. We are to understand that as God made the world in six days, and on the seventh day he finished his work, and sanctified it, and also formed man out of the dust of the earth, even so, in the beginning of the seventh thousand years will the Lord God sanctify the earth, and complete the salvation of man, and judge all things, and shall redeem all things, except that which he hath not put into his power, when he shall have sealed all things, unto the end of all things; and the sounding of the trumpets of the seven angels are the preparing and finishing of his work, in the beginning of the seventh thousand years—the preparing of the way before the time of his coming.13 Q. When are the things to be accomplished, which are written in the 9th chapter of Revelation?
A. They are to be accomplished after the opening of the seventh seal, before the coming of Christ.
Crash Course:
Doctrine and Covenants section 77 – LDS.org
Conflicts with Science – Mormon Think