This holiday is always celebrated on 1 April. Also known as 'EOKA Day', this holiday commemorates the start of the insurgence against the British in 1955.
Following the Russo-Turkish war (1877 - 1878), Cyprus was leased to the British Empire and was formally annexed by Britain at the end of the First World War.
Among the Greek Cypriots, the concept of 'enosis' - union with Greece had been a movement that had taken hold during the previous century, under Ottoman rule.
On 1 April 1955, the EOKA (Ethniki Organosis Kyprion Agoniston) whose aim was unification with Greece through armed struggle, started their guerilla campaign, targeting British military installations on the island.
The campaign against the British lasted for the next four years. On 16 August 1960, a cease fire was reached and Cyprus attained independence after the Zurich and London Agreement between the United Kingdom, Greece and Turkey.
Shops and businesses may be closed. People may attend church services to remember the efforts of the EOKA to secure Cyprus' independence and special events take place in schools, so that children are made aware of the island's struggle for freedom.