The institution
Race and the Priesthood
126 years, defended in First Presidency letters, disavowed in 2013.
The point in one sentence
For 126 years the Church denied Black members the priesthood and the temple, prophets defended it as revealed doctrine in official First Presidency letters, and in 2013 the Church disavowed those justifications as "theories" without ever saying the ban itself was a mistake.
126 years, then a reversal, then a disavowal
Note when the change arrives relative to the culture around it.
Sources: Church Gospel Topics Essay, "Race and the Priesthood"; Journal of Discourses 10:110; 1949 First Presidency statement
The exhibits
Gospel Topics essay, "Race and the Priesthood," the disavowal in full
Published 2013
What it establishes: The Church disavows the justifications. It does not say instituting the ban was wrong, or that it was anything other than God’s will at the time.
The essayThe same essay, on the ban’s origin
Published 2013
What it establishes: Elijah Abel was ordained an elder in 1836 under Joseph Smith. The ban was not original doctrine; it was introduced later, under Brigham Young in 1852.
The essayFirst Presidency statement, the highest governing body of the Church, reproduced from Church Archives
August 17, 1949
What it establishes: This is the answer to "it was only folklore." The First Presidency called the ban a direct commandment from God. If that is folklore, the word has no meaning.
The 1949 statementElder Bruce R. McConkie, "All Are Alike unto God," address to CES religious educators
August 18, 1978
What it establishes: An apostle instructing teachers to discard a century of prophetic teaching on race. It is candid, and it quietly concedes that prophets taught error as doctrine for 126 years.
The address, BYU SpeechesOfficial Declaration 2, First Presidency letter, canonized scripture
June 8, 1978
What it establishes: The reversal is scripture. So, for 126 years, was its absence. Both cannot have been God’s unchanging will.
Read Official Declaration 2When they say
"That was folklore, not official doctrine." If a First Presidency statement is folklore, the word has no meaning. Ask what official doctrine would look like, if not that.
"Prophets are not infallible." Agreed. But hold that next to the teaching that a living prophet cannot lead the Church astray. A racial exclusion policy lasting 126 years, spanning roughly a dozen prophets, is not a small mistake.
Why this should make you question
This is the sharpest available test of the Church's central authority claim. The people who lived under it were told by prophets that it was God's will. They were wrong.