March 7 Wednesday – Sam left for the Sandwich Islands aboard the steamer Ajax. The ship left port at four o’clock in the afternoon on a pleasant breezy day. Passage took ten days, 19 ½ hours [Frear 5].
Sam’s friends had given him letters of introduction to important persons on the island, including the King. They also gave him a case of wine, several boxes of cigars, and a “small assortment of medicinal liquors and brandy” [Sanborn 275-6; MTL 1: 334n1]. From Sam’s notebook:

March 5 Monday – Sam wrote a short letter from San Francisco to his mother, Jane Clemens and sister Pamela:
I start to the Sandwich Islands day after to-morrow…I am to remain there a month & ransack the islands, the great cataracts & the volcanoes completely, & write twenty or thirty letters to the Sacramento Union—for which they pay me as much money as I would get if I staid at home [MTL 1: 333].

March 4 Sunday – The Golden Era printed two articles by Sam: “A New Wildcat Religion,” and “Biographical Sketch of George Washington” [Walker 106].

March 3 Saturday – Sam’s article, “A New Biography of George Washington,” was printed in the Californian [reprinted from the Territorial Enterprise] [Schmidt].

February 27–March 2 Friday – Sam booked passage to the Sandwich Islands (Hawaii) sometime after returning to San Francisco.

February 26 Monday – This is most likely the day Sam and the editors of the Union agreed he should go to the Sandwich Islands. The exact agreement with the editors is unknown, but it’s clear Sam was to be paid for each letter from the islands. Sam had told his old school chum, Will Bowen, that he was willing to go anywhere the editors sent him, but since he’d missed out on two trips to the Sandwich Islands, it’s likely Sam suggested or offered that destination [Sanborn 273-4].

February 23 Friday – Sam wrote an account of the pioneer voyage of the Ajax for the Enterprise.

February 22 Thursday – Sam interviewed passengers upon return of the steamer Ajax, which began its maiden voyage on the San Francisco to Honolulu run on Jan. 13. Sam regretted not going. The Ajax was the same steamship that Sam would take in March. The earliest known “saloon version” of how Sam acquired the pen name “Mark Twain” appeared in the Nevada City, California Transcript [Cardwell 179]. (“Mark Twain” being a charge for two drinks.)

February 18 Sunday – The Golden Era printed three articles by Sam: “The Signal Corps,” “Spiritual Insanity,” and “Mysterious Newspaper Man” [Walker 129].

February 17 Saturday – Sam’s article, “An Open Letter to the American People” was published this date in the New York Weekly Review [MTL 1: 330 n5].