LDS History, Apr 4, 1844

-- Apr 4, 1844
Nauvoo, Illinois. Joseph Smith had an interview with 11 visiting Indians who wanted counsel. (1)

-- Apr 7, 1844
King Follett Discourse delivered by Joseph Smith. (2)

King Follett Discourse given by Joseph Smith. (3)

Nauvoo, Illinois. Joseph Smith delivered the King Follett Discourse about the nature of God and man, memorializing his friend who had died on March 9, 1844. (1)

[Lucy Mack Smith] Joseph delivers King Follett discourse. (4)

-- about Apr 14, 1844
Nauvoo, Illinois. Joseph Smith again preached on board the recently landed steamer Maid of Iowa. (1)

-- Apr 18, 1844 - 27 June 1844
[1st Presidency Changes] Joseph Smith, Jr. Hyrum Smith (Assistant President) Sidney Rigdon (never ordained an apostle) John Smith (never ordained an apostle, Assistant Counselor) Amasa M. Lyman (Counselor) Apostasy of William Law (never ordained an apostle) (5)

-- Apr 18, 1844
[Lucy Mack Smith] After a series of minor lawsuits against Joseph by the Higbees and Fosters, from 1-13 April, Robert Foster is excommunicated, along with Wilson and William Law, Jane (William's wife), and Howard Smith. (6)

-- Apr 21, 1844
[Lucy Mack Smith] William and Wilson Law and other dissenters organize a new church with William as president but not prophet. (6)

-- Apr 25, 1844
Nauvoo, Illinois. Joseph Smith told a reporter from the St. Louis Gazette that he had gained his power by the principles of truth and virtue. (1)

-- Apr 26, 1844
[Lucy Mack Smith] Augustine Spencer assaults his brother, Orson Spencer, and resists arrest. Marshal John P. Greene asks for help from Chauncy L. Higbee and Charles and Robert Foster, who refuse, leading to their own arrests and an attempted assault on Joseph. (6)

-- Apr 28, 1844
[Lucy Mack Smith] The dissidents church appoints Austin Cowles and Wilson Law as counselors to William Law. They have about 200 followers. Wilson is court-martialed as major general of the Nauvoo Legion. (6)

-- During Spring 1844
[Heber C. Kimball] Becomes member of the Council of Fifty. (7)

-- about May 3, 1844
Nauvoo, Illinois. Joseph Smith wrote a letter to Barbara Matilda Neff. (1)

-- May 5, 1844
Nauvoo, Illinois. Joseph Smith addressed a large company of friends at his home on the Saints course of dealings with the national government. (1)

-- May 6, 1844
Nauvoo, Illinois. An arrest warrant was served to Joseph Smith on complaint of Francis M. Higbee, but Joseph petitioned for and obtained a writ of habeas corpus answerable before the Nauvoo Municipal Court. (1)


Footnotes:
1 - BYU Studies Journal, volume 46, no. 4: A Chronology of the Life of Joseph Smith
2 - Ludlow, Daniel H. editor, Encyclopedia of Mormonism, Macmillan Publishing, Encyclopedia of Mormonism, Vol. 4, Appendix 2: A Chronology of Church History
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 - Proctor, Scott and Maurine Jensen, editors, History of Joseph Smith by His Mother: Revised and Enhanced
5 - Wikipedia, First Presidency (LDS Church), http://en.wikipedia.org/wiki/First_Presidency_(LDS_Church)#Chronology_of_the_First_Presidency
6 - Anderson, Lavina Fielding, Editor, Lucy's Book: A Critical Edition of Lucy Mack Smith's Family Memoir, 2001, Signature Books
7 - Kimball, Stanley B. (editor), On the Potter's Wheel: The Diaries of Heber C. Kimball, Chronology, Signature Books in association with Smith Research Associates, Salt Lake City, 1987
Mormon History Timeline /Chronology
http://lds-church-history.blogspot.com/