June 23 Holidays and Memorable Dates: Balalaika Day (A celebration of folk musicians) Day of Myths and Legends Day of Secret Messages International Dravet Syndrome Awareness Day International Olympic Day International Widows Day International Women in Engineering Day Let It Go Day Saint John's Eve Typewriter Day United Nations Public Service Day World Female Ranger Day World Whistleblowers Day Physical Culture Day (ֆիզկուլտուրաօր) - Armenia Public Service Day - Azerbaijan San