Republic Day in Sri Lanka
Republic Day in Sri Lanka is held on May 22. This event in the third decade of the month May is annual. 
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Sri Lanka became a Republic on 22nd May 1972, with the adoption of a new Constitution. Until the war victory on 18th May 2009, which overshadowed it, every year on May 22 Sri Lankans commemorated Republic Day. The republican idea was mooted in 1970 by the leaders of the LSSP during the drawing up of a Common manifesto of the United Front for General Election.
Similar holidays and events, festivals and interesting facts
Mullivaikkal Remembrance Day on May 18 (Sri Lankan Tamils);
Remembrance Day in Sri Lanka on May 18
Father's Day on June 18 (Ñelebrated on the third Sunday of June øò Argentina, Aruba, Canada, Costa Rica, France, Greece, Hong Kong, Hungary, India, Ireland, Kenya, Japan, Macao, Malaysia, Malta, Mexico, Netherlands, Pakistan, Peru, Puerto Rico, Singapore, Slovakia, South Africa, Sri Lanka, Trinidad and Tobago, Turkey, Venezuela, United Kingdom);
Asalha Puja on July 3
Engineer's Day in Sri Lanka on September 15
Children's Day in El Salvador, Guatemala, Sri Lanka on October 1
National Coffee Day in Japan and Sri Lanka on October 1