Holy Wednesday
Holy Wednesday is held on April 16. Celebrated on the week before Easter. This event in the second decade of the month April is annual. 
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In reference to Judas Iscariot's intent to betray Jesus, formed on Holy Wednesday, the day is sometimes called "Spy Wednesday". The word spy, as used in the term, means "ambush, ambuscade, snare". Additionally, among the disciples, Judas clandestinely was a spy and Wednesday was the day he chose to betray Christ.
Similar holidays and events, festivals and interesting facts
Holy Tuesday on April 15 (Celebrated on the Tuesday before Easter);
Holy Saturday on April 19
Easter in Western Christianity on April 20 (Første påskedag in Norway);
Secretary's Day in El Salvador on April 26 (Día de la secretaria);
Feast of the Virgin of Montserrat on April 27 (Spain [Catalonia], Argentina, Guatemala, Mexico, El Salvador, Venezuela);
World Design Day on April 27
Telegrapher's Day in El Salvador on April 27 (Día del telegrafista)