-1909 – King Rama VI founded the boy Scout Organization.
-1910 – Instead of following the tradition of building a royal temple,he established the Royal Page’s College that was then renamed Vajiravudh College by King Rama VII in 1926
-1911 – King Rama VI built Chulalongkorn Hospital as a memorial to the late king
-1912 – His majesty built Vajira Hospital
-1913 – King rama VI proclaimed the use of B.E. or Buddhist Era, instead of Rattanakosin Era, for the official recording of time.
-1915 – His Majesty laid the foundation of the first building of Chalalongkorn University which was the first university in Thailand.
-1917 – His Majesty changed the national flang of Siam fron the previous elephant flag to the now familiar tri-colour flag.
-1921 – The Compulsory Primary Education Act was proclaimed by His Majesty. Children aged between 7 and 14 were now expected to go to school and receive a basic education.