"O Canada" is the national anthem of Canada, officially adopted in 1980. The song was originally composed in French by Calixa Lavallée in 1880, with English lyrics added later by Robert Stanley Weir. It celebrates the beauty and vastness of the Canadian landscape and expresses pride in the nation. The anthem is often played at public events, including sports games and national holidays like Canada Day. Its melody and lyrics evoke a sense of unity and patriotism among Canadians, making it a significant symbol of national identity.