National Anthem Day in Canada
National Anthem Day in Canada is held on June 27. This event in the third decade of the month June is annual. 
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When the first familiar chords of "O Canada" play at schools, hockey games and other events, Canadians stand with pride in honour of their country. Proclaimed to be Canada's national anthem on July 1, 1980, "O Canada" was first sung in French 100 years earlier.
The song was originally commissioned by Lieutenant Governor of Quebec Théodore Robitaille for the 1880 Saint-Jean Baptiste Day ceremony. The music was composed by Calixa Lavallée, with the words written by poet and judge, Sir Adolphe-Basile Routhier. Sir Adolphe-Basile Routhier died on June 27, 1920, at Saint-Irenée-les-Bains, Quebec.
"O Canada" had served as a de facto national anthem since 1939, officially becoming the country's national anthem in 1980 when Canada's National Anthem Act received royal assent and became effective on July 1 as part of that year's Dominion Day (today's Canada Day) celebrations.
“O Canada” spread in World War II, and by the 1960s had won its place as the country’s national song. But it was still not official. Finally, in the wake of the 1980 sovereignty referendum, the House of Commons showed a rare common purpose, and on June 27, 1980, voted unanimously to pass the National Anthem Act. Three days after its 100th birthday, “O Canada” finally became the nation’s official anthem.
Similar holidays and events, festivals and interesting facts
National Holiday of Quebec on June 24 (St. Jean Baptiste Day);
Canadian Multiculturalism Day on June 27 (It’s about inspiring belonging in a strong integrated community);
World Scleroderma Day on June 29
International Tartan Day on July 1 (Tartan Day is a celebration of Scottish heritage on 6 April, the date on which the Declaration of Arbroath was signed in 1320. It originated in Canada in the mid-1980s. It spread to other communities of the Scottish diaspora in the 1990s. In Australia the similar International Tartan Day is held on 1 July, the anniversary of the repeal of the 1747 Act of Proscription that banned the wearing of tartan. Tartan Days typically have parades of pipe bands, Highland dancing and other Scottish-themed events);
Moving Day on July 1 (Quebec, Canada);
Newfoundland and Labrador Memorial Day on July 1
Canada Day on July 1 (formerly Dominion Day);
Canada Constitution Day on July 1 (Also known as Fête du Canada)
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