Before Halliwell's Union Jack minidress moment in 1997, Kate Moss modeled a jacket inspired by the flag as part of John Galliano's "Olivia the Filibuster" spring 1993 ready-to-wear collection.

Ed Ram/Getty There is much debate about the exact origin of the Union Jack flag's name. In the 16th century, it was initially called the British flag and in 1625, the word "Union" was introduced.