John Bull the "blue and buff" scheme; this was used by supporters of Whig politics, which was part of what John Arbuthnot wished to deride when he created and designed the character. By the twentieth century, however, his waistcoat nearly always depicts a Union Flag, and his coat is generally dark blue. (Otherwise, however, his clothing still echoes the fashions of the Regency period.) He also wears a low topper (sometimes called a John Bull topper) on his head and is often accompanied by a bulldog. John Bull has been used in a variety of different ad campaigns over the years, and
World War I cryptography World War I cryptography Codes and ciphers were used extensively in World War I. The decoding by British Naval intelligence of the Zimmermann telegram helped bring the United States into the war. Trench codes were used by field armies of most of the combatants (Americans, British, French, German) in World War I. The most commonly used codes were simple substitution codes. More important messages generally used mathematical encryption for extra security, though. The use of these codes required the distribution of codebooks to military personnel, which proved to be a security liability since these books could be stolen by enemy