1827 Thoreau wrote student essay "The Seasons," his earliest known composition
1837 Thoreau began to keep a journal
First published piece, obituary notice of Anna Jones, appeared in Concord newspaper Yeoman's Gazette
1840 Published pieces in The Dial (poem "Sympathy"; essay "Aulus Perseus Flaccus")
1841 Published poetry in The Dial ("Stanzas," "Sic Vita," "Friendship")
1842 Published essay ("Natural History of Massachusetts") and poems (including "To the Maiden in the East") in The Dial
1843 Published in Boston Miscellany ("A Walk to Wachusett"), in The United States Magazine and Democratic Review (essay and book review), and in The Dial (poems, including "Smoke"; essays, including "A Winter Walk"; and selections in translation from Oriental literature and from Chaucer)
1844 Published lecture extracts ("Homer, Ossian, Chaucer"), essay ("Herald of Freedom"), and translations in The Dial
1845 Published letter ("Wendell Phillips Before the Concord Lyceum") in The Liberator
1847 Published "Thomas Carlyle and His Works" in Graham's Magazine
1848 Published "Ktaadn and the Maine Woods" in The Union Magazine
1849 A Week on the Concord and Merrimack Rivers appeared (Boston: James Munroe)
Published "Resistance to Civil Government" in Elizabeth Palmer Peabody's Aesthetic Papers
1852 Published what would later be parts of Walden in Sartain's Union Magazine
1853 Published "Excursions to Canada" in Putnam's Monthly Magazine
1854 Published in New York Daily Tribune (selections from soon-to-be-published Walden) and in The Liberator ("Slavery in Massachusetts")
Walden; or, Life in the Woods appeared (Boston: Ticknor and Fields)
