Nelson Mandela's inaugural speech on May 10, 1994, marked a historic moment as he became South Africa's first black president, symbolizing the end of apartheid and promoting unity, justice, and healing. He emphasized the need for reconciliation among South Africans and urged a collective effort to build a peaceful and just society. Mandela's speech highlighted the sacrifices made for freedom and called for cooperation in overcoming past divisions to create a brighter future.