-- Mar 26, 1975
Bay Area Broadcasting Company is formed as a subsidiary of Bonneville International. (1)
-- May 3, 1975
Citing accelerated growth of the Church worldwide, the First Presidency announced the creation of an area supervisory program and the assignment of six Assistants to the Twelve to oversee Church activities while residing outside the United States and Canada. The number of these foreign areas was increased to eight later in the year. (2)
Regions and stakes incorporated into areas; area supervisors announced. (3)
-- May 17, 1975
A supervisory program for missions in the United States and Canada was announced, along with the assignment of members of the Quorum of the Twelve as advisers and other General Authorities as supervisors of the 12 areas. (2)
-- Jun 27, 1975
The end of auxiliary conferences was announced during the opening session of the 1975 June Conference. These conferences would be replaced with annual regional meetings for priesthood and auxiliary leaders. (2)
Churchwide auxiliary conferences discontinued. (3)
-- Jul 24, 1975
The 28-story Church Office Building in Salt Lake City was dedicated by President Spencer W. Kimball. (2)
Church Office Building dedicated. (3)
President Kimball dedicates 28-story church Office Building. (1)
-- Aug 8, 1975-17
President Kimball spoke to a total of 44,500 members at five area conferences in the Far East, Japan, the Philippines, Hong Kong, Taiwan and Korea (2)
-- Sep 14, 1975
[U.S. Religious History] Elizabeth Ann Seton was canonized by Pope Paul VI. (4)
-- Oct 3, 1975
President Kimball announced in general conference the organization of the First Quorum of the Seventy, and the first three members of the quorum were sustained. (2)
Spencer W. Kimball announced organization of First Quorum of the Seventy. (3)
Footnotes:
1 - Sherry Baker: Mormon Media History Timeline: 1827-2007, http://byustudies.byu.edu/showTitle.aspx?title=7984
2 - Church News: Historical chronology of The Church of Jesus Christ of Latter-day Saints
3 - Hemidakaota, "Church Chronology from 1800-2000," http://www.lds.net/forums/scripture-study-forum/12108-church-chronology-1800-2000-part-1-a.html#post214550
4 - Cline, Austin, History of American Religion: Timeline, http://am-rel-hist.gu.ma
Mormon History Timeline /Chronology
http://lds-church-history.blogspot.com/