Joseph Smith (1805–1844) plagiarized Emanuel Swedenborg (1688-1772) on numerous occasions word for word.

(Swedenborg, Heaven and Hell, chapter 5)

There are three heavens: the celestial, the spiritual, and the natural. Those of a lower heaven are unable to see those in a higher heaven. Furthermore, the celestial heaven has three divisions.

(Smith, Doctrine and Covenants, 76, 131:1)

There are three heavens: the celestial, terrestrial, and telestial kingdoms. Those of a lower heaven are unable to see those in a higher heaven. Furthermore, the celestial kingdom has three divisions.

(Swedenborg, Heaven and Hell, 421-422)

After dying, people enter a world of spirits that is nearly identical to this one. Afterward, they inherit a degree of glory based on how they lived while incarnate.

(Smith, Alma 12:24, 34:32-34, 40:21)

After dying, people go to the spirit world, which exists here on this world. Afterward, they inherit a degree of glory based on how they lived on the earth as well as in the spirit world.

(Swedenborg, Last Judgement, 33-39; True Christian Religion, 647)

The church established by Christ died spiritually due to apostasy and false doctrines. The Lord's church would be re-established and again act as a link with heaven.

(Joseph Smith History, 1:16)

The church established by Christ died spiritually due to apostasy and false doctrines. The Lord's church was restored through Joseph Smith.