Aste Nagusia

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Aste Nagusia
Marijaia in Teatro Arriaga, 2005
Type	Cultural
Significance	Assumption of Mary
Celebrations	Parties
Date	Nine days starting the first Saturday after 15 August
2023 date	19 – 27 August
2024 date	17 – 25 August
2025 date	16 – 24 August
2026 date	22 – 30 August
Frequency	Annual

Aste Nagusia or "The Great Week" (Basque: Bilboko Aste Nagusia, Spanish: Semana Grande de Bilbao) is the main festival of Bilbao, Basque Country, Spain, which is celebrated annually over 9 days beginning on the first Saturday following 15 August, the festivity of the Assumption of Our Lady.