1956-1965
- 2 January 1957 - MSS operated from a temporary site (a former British Army Barrack) at Baeza Avenue, Off Ashby Road, Ipoh, Perak with 360 students. The first headmaster of the school was Tuan Hj. Hamdan Bin Sheikh Tahir.
- 6 January 1958 - the school moved to its present site along Tiger Lane, Ipoh (now Jalan Sultan Azlan Shah).
- 14 May 1958 - the official opening and renaming of the school by the first Prime Minister of Federation Of Malaya YTM Tunku Abdul Rahman Putra Al-Haj.
- The school is now known as Sekolah Tuanku Abdul Rahman, named after the first Yang Di Pertuan Agong of the Federation, His Majesty Tuanku Abdul Rahman.
- 23 September 1958 - royal Visit by the His Majesty Yang Di Pertuan Agong Tuanku Abdul Rahman.
- November 1959 - the first batch of students sat the Lower Certificate of Education examination.
- January 1960 - Form Four classes started.
- November 1961 - STAR’s first batch of candidates (155) sat for the combined Cambridge Overseas School Certificate/Federation of Malaya Certificate examinations.
- January 1962 - Form Six Classes started.
- November 1963 - STAR’s first batch of Upper Six Classes (Arts and Science) sat for the Overseas Higher School Certificate examination.
- January 1964 - girl students were admitted (STAR is a boys’ residential school) to the school joining Lower Six Science class.
- January 1965 - 13 girls were admitted to the school entering Lower Six classes.
Read more about this topic: Sekolah Tuanku Abdul Rahman