- https://github.com/caesar0301/awesome-public-datasets
- https://okfn.org/opendata/
- https://en.wikipedia.org/wiki/Open_data
http://opendata.stackexchange.com/questions/1926/list-of-public-holidays-by-countries https://www.opm.gov/policy-data-oversight/snow-dismissal-procedures/federal-holidays#url=2017 https://github.com/novafloss/workalendar https://en.wikipedia.org/wiki/Category:Lists_of_public_holidays_by_country https://en.wikipedia.org/wiki/Public_holidays_in_Switzerland https://en.wikipedia.org/wiki/Sechsel%C3%A4uten#Python_algorithm http://kayaposoft.com/enrico/ http://www.webcal.fi/en-US/other_file_formats.php http://www.earthcalendar.net/index.php http://www.bavaria.by/bavarian-holidays https://www.netogram.com/nationalholidays.htm http://www.feiertagskalender.ch/index.php?jahr=2016&geo=0&klasse=5&hl=en&hidepast=1 http://publicholidays.com.au/ http://www.visitlondon.com/traveller-information/essential-information/public-holidays#wmsDlA2tFuAQpco0.97
https://www.gov.uk/bank-holidays http://www.officeholidays.com/countries/switzerland/ https://github.com/mayflower/libholiday