Brazil: Anniversary of the massacre of El Dorado dos Carajas (Protests — often involving roadblocks on major highways — are likely to occur on this day, particularly in the state of Pará.)
Gabon: Women’s Day
Iraq: FAO Day
Islam: Ramadan
Israel: Yom HaAtzmaut (Israel Independence Day. Begins at sundown on 16 April.)
Syria: Independence Day
United Kingdom: Private funeral ceremony for Duke of Edinburgh at Windsor Castle, England