Time Travel - Legacy, Preservation & Curation > The Hitchhiker's Guide to Time Travel
# Questions How do we honour and preserve the 25-year h2g2 legacy and community contributions? How do we curate what's valuable, migrate historical content, and maintain continuity while enabling the next phase. And the one after that.
# Public Domain Books
* **H. G. Wells** — *The Time Machine* (1895) *Anchor text for “Time Travel Etiquette” entries.* * **Mark Twain** — *A Connecticut Yankee in King Arthur’s Court* (1889) *Industrialization meets medieval myth; handbook material galore.* * **Edward Page Mitchell** — “The Clock that Went Backward” (1881, short story) *Early time-travel conceit; tight and quotable.* * **William Hope Hodgson** — *The House on the Borderland* (1908) *Cosmic timescales; great for “Don’t Panic” sidebars about eternity.*
# References
- Time Travel: A Pattern Language for Values That Change (1999) Massimo Arnoldi, Kent Beck, Markus Bieri, and Manfred Lange. - pdf 
In the beginning there was dark.
A pattern language for building systems that have to keep track of changes to business objects. Also, an experiment in writing minimalist patterns that are embedded in a Development Narrative (a Literate Program with Re Factoring).
# See - Hitchhiker Time Travel