The Foundation Stone is a memorial dedicated to the early founders – the “Unknown Immigrants” - of Singapore. It consists of a rectangular granite stone on a pyramid shaped brick pedestal, with inscriptions in the four official languages of Malay, English, Mandarin and Tamil.
The original idea for the memorial was mooted by a graduates association in 1969 and an open design competition was held. On 18 January 1970, President Yusof Ishak laid the foundation stone for the memorial at a temporary site along Collyer Quay outside the Fullerton Hotel. However, no eventual winner for the competition was announced, and due to a lack of funds, the foundation stone itself became the memorial. The stone was later relocated to the grounds of the National Archives of Singapore at Canning Rise. With the completion of the Fullerton Heritage Gallery on 9 July 2010, the Foundation Stone was moved back to the Fullerton Hotel premises.