The night of September the 14th, 1814, saw heavy bombardment of Baltimore by the British. Despite this, the next morning, the large American flag was still flying undamaged over Fort McHenry. Such a sight made lawyer Francis Scott Key feel extremely patriotic, and he wrote four verses called Defence of Fort McHenry, which he set to the music of To Anacreon in Heaven, a British drinking song. When it was later sold as sheet music, the publishers used a different title for Key’s ditty, and in 1931 it was chosen to be America’s national anthem. Yes - The Star Spangled Banner is based on a British drinking song!