Complex sentence: Saudi National Day (Arabic: اليوم الوطني للمملكة العربية السعودية) it is celebrated in Saudi Arabia in every 23rd of September, Saudi National Day commemorates the establishment of the Kingdom of Saudi Arabia by King Abdulaziz in 1932.
Split into simpler sentences: Saudi National Day (Arabic: اليوم الوطني للمملكة العربية السعودية) it is celebrated in Saudi Arabia in every 23rd of September, Saudi Arabia celebrates Saudi National Day. It commemorates the establishment of the Kingdom of Saudi Arabia by King Abdulaziz in 1932.