Saudi national day =)
In 21 Jumad Al-Akher 1351 Hijri , 23 september 1932 AD. King Abdul-Aziz had announced the unity of principal regions in The Arabian Peninsula to establish the Kingdom Of Saudi Arabia the most important Arabic and Islamic country..
In 23-9-2010.. King Abdullah bin abdulaziz ( The king of kingdom of Saudi Arabia ) opened King abdullah university of science and technology .. ( KAUST )
So we have to occasions in 23-9
here is KAUST web site..it’s only for MS ans PhD..