"Two Years Before the Mast" by Richard Henry Dana Jr. is a memoir published in 1840, based on his 1834-1836 voyage as a common sailor. Dana sailed from Boston around Cape Horn to Mexican California, trading for cow hides at mission ports along the coast. He vividly recounts shipboard life, witnessing brutal floggings, befriending Hawaiian sailors, and enduring treacherous Antarctic storms on the return journey. The work offers an unflinching look at maritime conditions and sailors' rights while capturing California before its transformation. (This is an automatically generated summary.)