The Quorum of the Seventy is organized. Joseph Young, Hazen Aldrich, Levi W. Hancock, Leonard Rich, Zebedee Coltrin, Lyman Sherman, and Sylvester Smith are called as the seven presidents. (1)
-- February 28, 1835
[Joseph Smith] Kirtland, Ohio. Joseph Smith organized the First Quorum of the Seventy. (2)
[Joseph Smith] Joseph organizes the First Quorum of the Seventy. (3)
-- 1835 February 28
[Joseph Smith] Organized Quorum of the Seventy, Kirtland. (4)
-- 1835, February 28
[Joseph Smith] Organizes a Quorum of the Seventy. (5)
-- 28 Feb. 1835
[Lucy Mack Smith] The Seventy are chosen from those who went on Zion's Camp. Joseph Young, Hazen Aldrich, Levi W. Hancock, Sylvester Smith, Leonard Rich, Zebedee Coltrin, and Lyman Sherton are the seven presidents. (6)
-- 1835 Feb 28
[Lucy Mack Smith] Organization of the Quorum of the Seventy. (7)
-- During 1835 February
[Joseph Smith] [Joseph Smith] Organizes Quorum of Twelve Apostles and Quorum of Seventy. (8)
-- March 1, 1835
[Joseph Smith] Kirtland, Ohio. Joseph Smith met with the high council and ordained many of the newly called members of the First Quorum of the Seventy, including George A. Smith, who later became a member of the Quorum of the Twelve Apostles. (2)
-- March 7, 1835
[Joseph Smith] Kirtland, Ohio. Joseph Smith participated in a meeting held for the purpose of giving blessings to 119 men who had helped build the Kirtland Temple. (2)
-- March 12, 1835
[Joseph Smith] Kirtland, Ohio. Joseph Smith met with the Quorum of the Twelve Apostles and proposed that they take their first mission through the Eastern States, to the Atlantic Ocean. (2)
-- 1835, March 28
Revelation on priesthood (D&C 107) given through Joseph Smith. (9)
-- 1835 28 March
Revelation on priesthood received (D&C 107). (10)
Footnotes:
1 - http://en.wikipedia.org/wiki/19th_century_(Mormonism)
2 - BYU Studies Journal, volume 46, no. 4: A Chronology of the Life of Joseph Smith
3 - http://www.prophetjosephsmith.org/joseph_smith_timeline
4 - Joseph Smith Papers: Chronology for the Years 1832-1839
5 - Teachings of Presidents of the Church: Joseph Smith, The Church of Jesus Christ of Latter-day Saints, Salt Lake City, Utah
6 - Lucy's Book: A Critical Edition of Lucy Mack Smith's Family Memoir, Edited by Lavina Fielding Anderson, 2001, Signature Books
7 - History of Joseph Smith by His Mother: Revised and Enhanced by Scot Facer Proctor Maurine Jensen Proctor
8 - http://josephsmithpapers.org/TimelineOfEvents.htm
9 - Encyclopedia of Mormonism, Vol. 4, Appendix 2: A Chronology of Church History
10 - http://www.lds.net/forums/scripture-study-forum/12108-church-chronology-1800-2000-part-1-a.html#post214550
Clair Barrus