International Day of Peace occurs on

International Day of Peace is celebrated 21 September promoting global harmony. This question tests knowledge of international observances. Options A and C are incorrect dates. Established by the UN it fosters peace initiatives worldwide. Understanding this day aids in studying global diplomacy. Events include peace education and ceasefires. Correct knowledge ensures clarity in discussing international relations. This date is vital for analyzing peace efforts in professional or academic contexts ensuring precise context in reports or conversations about global harmony or conflict resolution strengthening understanding of diplomatic initiatives.