May 3, 2007 World Press Freedom Day
May 3, 2007 National Day of Prayer
May 4, 2007 Kent State Shootings Remembrance
May 4, 2007 Kentucky Oaks
May 4, 2007 Rhode Island Independence Day
May 5, 2007 Cinco de Mayo
May 5, 2007 Kentucky Derby
May 6, 2007 National Nurses Day
May 8, 2007 Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War
May 8, 2007 Victory in Europe Day
May 10, 2007 Confederate Memorial Day
May 12, 2007 World Migratory Bird Day
May 12, 2007 International Nurses Day
May 13, 2007 Mother's Day
May 15, 2007 International Day of Families
May 15, 2007 Peace Officers Memorial Day
May 17, 2007 Ascension Day
May 17, 2007 World Information Society Day
May 18, 2007 National Defense Transportation Day
May 19, 2007 Armed Forces Day
May 19, 2007 Preakness Stakes
May 21, 2007 World Day for Cultural Diversity for Dialogue and Development
May 22, 2007 International Day for Biological Diversity
May 22, 2007 National Maritime Day
May 25, 2007 African Liberation Day
May 25, 2007 National Missing Children's Day
May 28, 2007 Memorial Day
May 28, 2007 Jefferson Davis' Birthday
May 29, 2007 International Day of United Nations Peacekeepers
May 31, 2007 World No Tobacco Day