 The Constituent Assembly held its first meeting on 21 November 1989 and resolved unanimously to use the 1982 Constitutional Principles in Namibia's new constitution.Namibia's Independence Day celebrations took place in the Windhoek Sports Stadium on 21 March 1990.Numerous international representatives attended, including 20 heads of state, and the arrival of Nelson Mandela, who had just been released from prison, caused excitement among the 30,000 spectators.