Title: Mentally calculating the day-of-the-week for any date in history sounds like an impossible task for  a normal person, but the algorithm is actually pretty simple to learn.<p>Although there are tutorials for this elsewhere online, and little quizzes available, there didn&#x27;t seem to be anything well optimised with multiple practice modes etc.<p>I originally created a basic version of this just for myself, but a small group of friends and family found it interesting and gave suggestions such as the daily game.<p>Multi-lingual support is a bit rudimentary at the moment, it will only translate the month names and weekday names, not other text. If any translation mistakes are identified please let me know.<p>Other feedback is welcome too.
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