Mark Twain Project Online applies innovative technology to more than four decades' worth of archival research by expert editors at the Mark Twain Project. It offers unfettered, intuitive access to reliable texts, accurate and exhaustive notes, and the most recently discovered letters and documents.
Its ultimate purpose is to produce a digital critical edition, fully annotated, of everything Mark Twain wrote. MTPO is produced by the Mark Twain Papers and Project of The Bancroft Library in collaboration with the University of California Press; the site is hosted by UC Berkeley's Library Systems Office. During 2005–8 the California Digital Library collaborated in MTPO's creation and initial development.
In April 2009, the MLA Committee on Scholarly Editions designated MTPO an "Approved Edition," and in 2015, MTP was honored as part of NEH@50.
Mark Twain Project Online was built with a generous grant from the NEH’s Digital Infrastructure Challenge Grant program (2023-25). The Mark Twain Project’s ongoing editorial work receives a generous grant from the NEH's Scholarly Editions and Scholarly Translations program.
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