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A trial on the evidence · 1822–2020

Did plural marriage originate with Joseph Smith?

On trial: the claim that plural marriage originated with Joseph Smith, who secretly practiced and sanctioned it. Evidence making the case against him sits on the right; the case for him on the left; stipulated context down the middle. Each exhibit is graded by how it was recorded, placed by when it entered the record (toggle to alleged-event dating), and contested claims can be opened against the evidence that rebuts them.

▸ How to read this timeline (and where the data comes from)

The source is an advocacy page. This timeline is built from the Hemlock Knots “Mormon Polygamy Timeline of Events,” which argues that Joseph Smith was a monogamist and that polygamy was a later development. The data faithfully captures what that page asserts and cites — it is not an adjudicated, neutral history. Read the sources and decide for yourself.

Evidence badges are the point. Many polygamy claims rest on testimony given decades after the fact. Each card shows its evidence type (journal, letter, sworn testimony, affidavit, published, revelation, recollection, or plain record), a “recorded N yrs later” flag when the account is late, a “°-hand” flag when it was relayed second- or third-hand, and a “contemporary” mark for accounts made at the time.

Try “Contemporary & first-hand only.” That filter hides every late or second-hand account so you can see what survives on contemporaneous evidence alone.

Evidence fields were extracted programmatically and then verified entry-by-entry. Click any card to read its full text and open its sources.

William Clayton journal additions. Ten entries from William Clayton's journals (marked “added · Clayton journal”) supplement the source — Clayton was a polygamist himself and recorded plural marriage first-hand. His post-martyrdom personal diary (vols 1 & 3) is treated as contemporary; his Joseph-lifetime scribe journal (vol 2) carries a “composition disputed” caution, since when those entries were actually written is contested.

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Case for Joseph Smith
Case against Joseph Smith