In the past, there was a small group of Bidayuh (Land Dayak) Bisapug community settlement besides the Tapah River.
Once upon a time, there was a great traditional longhouse of Bidayuh Bisapug community on the top of Brungu Hill.
Then, some of this community explored to the east through Tapah River settle at two longhouses namely bitangan (beside Tapah river and another one at another side of it branch Sungai Daoh) and made a new settlement called Kampung Plaman Sidaun with appointment of new village chief.
When Sarawak joined the Federation of Malaysia in 1963, the national educational system took over schooling in Sarawak and the Anglican missionary school became known as Sekolah Rendah Bantuan St. Matthew (today as Sekolah Kebangsaan St. Matthew, Mundai).
In secondary education, most study at Sekolah Menengah Kebangsaan Tun Abdul Razak, formerly known as Dragon School then Kolej Tun Abdul Razak.