MIA — The Mutual Improvement Association was revised and renamed Young Men and Young Women starting in 1974. (Young Women's Mutual program was originally called "The Young Ladies' Retrenchment Association.") "M-Men and Gleaners" groups started in 1921 to serve young people ages 17-23, and continued until 1974.

Meetings — The "block time" began in 1980, replacing separate priesthood/Sunday school meetings and separate sacrament meetings with a single section of continuous meetings. (Before the block time, priesthood and Sunday School meetings were held in the morning and church members came back in the evening for an approximately 90-minute sacrament service.) Semi-annual stake conferences replaced quarterly gatherings in 1979. A network of satellite dishes at stake centers was announced in 1981.

Missionaries — Married men were serving full-time missions as recently as the early 1950s. The first standard missionary discussions were issued in 1952. Returned missionaries stopped reporting to general authorities in 1953 and only reported thereafter to their home stake presidency and high council. In 1961, a language training mission was established at BYU. The age for young men to serve a full-time mission was lowered from 20 to 19 starting in the early 1960s. The Missionary Training Center in Provo, previously the Language Training Mission, started training all missionaries in 1978. Missionary service was reduced from two years to 18 months for a two-year period, 1982-1984. Costs for full-time missionary service were equalized in all missions starting in 1990.

Plural marriage — The "Manifesto" was adopted by the church in 1890, declaring that the church would obey the constitutional law of the land and cease plural marriage. In 1904, President Joseph F. Smith reaffirmed the 1890 Manifesto.

Priesthood — Worthy men of all races could receive the priesthood starting in 1978.

Priesthood advancement — The First Presidency formally adopted the ages of 12, 15, 18 and 21 as ages for deacon, teacher, priest and elder advancement starting in 1908. The age was reduced for teachers and priests to 14 and 16, respectively, beginning in 1954, and the age for elders was lowered to 19 at about the same time. Seventies quorums in stakes throughout the church were discontinued in 1986.

Primary — Presiding officers of the Primary were called presidents, rather than "superintendents," starting in 1942.