Holiday dates and structured calendar data from OpenHolidays API are published under the Open Database License (ODbL-1.0). The source database and its license are linked here for attribution and reuse. Holiday summaries are original writing. References are grouped on the profile page.
- OpenHolidays API
Open Database License (ODbL-1.0). Credit OpenHolidays and link the ODbL. Derived calendar datasets are published under ODbL-1.0 with source and license metadata. - Wikipedia (English)
CC BY-SA 4.0 (page-specific license may vary). Use as a lead to facts and cite the page. Do not copy article text. Verify page license and facts before reuse. - Wikidata
CC0 for structured data. Use sourced statements and retain statement references where available. - Country government or public authority
Check the specific source terms. Prefer official holiday notices and calendars. Store only sources actually verified for the country and year.