This is the complete collection of the cleanest, hi-res Calvin and Hobbes comics available in 2015, organized by original publishing dates, and with an optional database.
This archive has its origins from a PirateBay archive that is no longer around.
The artwork is from the GoComics website. Those CBR scans of the collected works were broken apart into 1600/1700 pixel wide JPEGs of individual strips, and named according to their original publishing dates.
The artwork can work with a PHP script that allows a full text search of the strips' dialog and occasional narrative descriptions, a chronological slideshow, and a date-based table of contents.
The textual database comes from a transcription I can no longer locate, but appears to be the source of the search engine at http://michaelyingling.com/random/calvin_and_hobbes/ (Note that this site doesn't have any artwork, but merely links to the low-res artwork at gocomics.com) and also derives browsable HTML obtained from: http://marcel-oehler.marcellosendos.ch/comics/ch/