A Nation Once Again was voted the world's most popular song according to a BBC World Service global poll of listeners, ahead of "Vande Mataram", the national song of India. Davis copied the melody for the chorus from the second movement of Mozart's clarinet concerto. The lyrics use a simple ABABCDCD rhyme scheme, with verses of eight lines, and alternating lines of iambic tetrameter and iambic trimeter. Davis describes how he learned of ancient fighters for freedom as a boy — the three hundred Spartans who fought at the Battle of Thermopylae. The "three men" may refer to Horatius Cocles and his two companions
Vande Mataram of Calcutta, would work themselves up into a patriotic fervour by shouting the slogan "Vande Mataram", or "I praise the Mother(land)!" The British, fearful of the potential danger of an incited Indian populace, banned the book and made the recital of the song a crime. The British colonial government imprisoned many independence activists for disobeying the order, but workers and general public repeatedly violated the ban many times by gathering together before British officials and singing it. Rabindranath Tagore sang "Vande Mataram" in 1896 at the Calcutta Congress Session held at Beadon Square. Dakhina Charan Sen sang it five years