Foundation Day is a national public holiday in Saudi Arabia that commemorates the founding of the Kingdom. The celebration marks the unification of the country by King Abdulaziz bin Abdul Rahman Al Saud in 1932, which gave birth to the current Kingdom of Saudi Arabia.

The celebrations of Foundation Day in Saudi Arabia are often marked by nationwide festivities that reflect the rich heritage, culture and traditions of the country. The streets are decorated with national flags, various events and activities are organized, and people dress in traditional attire to showcase their pride and love for the nation. Notably, significant public and private buildings are lit up in green, symbolising the country's flag. Also, fireworks light up the sky nearing the break of dawn, adding effervescence to the occasion.

On this day, the national anthem is sung in schools, government buildings, and other public places. People gather with family and friends to watch parades, attend concerts, and enjoy folk dances and poetry readings. It's an opportunity for Saudis to reflect on their history, express their patriotic spirit, and look forward to the future with hope and optimism. Many use this day to honor the struggles and hardships faced by their ancestors in unifying the kingdom, prompting a sense of respect and appreciation for the country's historical journey.