Sources and licences

• OpenHolidays API, ODbL-1.0: open database; our copy is at /dados/fontes/ under the same licence.
• Código do Trabalho, art. 234.º (feriados obrigatórios): https://diariodarepublica.pt/dr/legislacao-consolidada/lei/2009-34546475
• BOE: relación de fiestas laborales 2027 (BOE-A-2026-21254) y 2026 (BOE-A-2025-21667): https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-21254
• Code du travail, art. L3133-1 ; calendrier.api.gouv.fr: https://calendrier.api.gouv.fr/
• Legge 27 maggio 1949, n. 260, e legge 8 ottobre 2025, n. 151 (4 ottobre): https://www.normattiva.it/eli/id/2025/10/10/25G00153/CONSOLIDATED/
• Feiertagsgesetze der Länder (Daten: OpenHolidays): https://www.openholidaysapi.org/
• GOV.UK: UK bank holidays (Open Government Licence v3.0): https://www.gov.uk/bank-holidays