| Established on 18 June 1961 by independent Assembly Member and former PAP minister Ong Eng Guan, who rebelled against his party and was expelled a year earlier. Initially, UPP adopted a symbol of three interlocking rings but while registering it in June 1963 for that year's General Election, this was rejected by the societies registrar for being identical to the symbols of several state institutions. The "key" logo Ong used in the 1961 by-election was chosen instead. After a disastrous showing in the 1963 GE, Ong resigned the party's only seat and retired from politics. After that, its remaining members faded away or crossed over to Barisan or WP and the party became defunct. |
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