The melody for "The Star-Spangled Banner" was not original but an English tune called "The Anacreontic Song." It was the official song for a London-based amateur musicians' club. This well-known melody was frequently repurposed for new lyrics, a common practice at the time for creating so-called "broadside ballads."

"God Save the King" first gained widespread popularity as a pro-Hanoverian anthem in the autumn of 1745. It was performed nightly in London theaters to rally support for King George II against the invading army of Bonnie Prince Charlie.

Despite its historical subject matter—the 1314 Battle of Bannockburn—Scotland's unofficial national anthem, "Flower of Scotland," is a relatively modern creation. It was composed in 1966 by the folk duo The Corries and was adopted for sporting events decades later.

The line "may he defend our laws" in "God Save the King" is a subtle endorsement of the 1688 Glorious Revolution. It praises a monarch who upholds laws made by Parliament, reflecting a constitutional monarchy rather than a divine right to rule.

A primary objection to adopting "The Star-Spangled Banner" was its musical difficulty. The melody demands a range of 19 semitones, beyond the capability of many amateur and even some professional singers. This "unsingable" quality was a major argument in favor of alternatives like "America the Beautiful."

Abolitionists repurposed the popular tune of "The Star-Spangled Banner" for their own cause. In 1844, the newspaper "The Liberator" published lyrics highlighting the hypocrisy of a nation that condoned slavery, asking "O say, do you hear... the shrieks of those bondsmen?" while a banner with "stars mocking freedom is fitfully gleaming."

"God Save the King," now a symbol of the British establishment, began as a Jacobite anthem supporting the Stuart dynasty. It was co-opted by the ruling Hanoverians during the 1745 uprising, effectively making the anthem a "turncoat."

While Tchaikovsky was a fervent Russian patriot, his focus on folk traditions and national identity was part of a wider 19th-century European Romantic movement. His 'Russianness,' far from being unique, was an expression of a continental trend celebrating national character in art.

During the Napoleonic Wars, Britain responded to France's secular "Marseillaise" by terming "God Save the King" a national "anthem." This deliberately Christianized the song, positioning it as an ideological counterpoint to what they saw as France's militant atheism.