Due to its hybrid breed status, the Boxmas’ history is not well-documented. Both of its parent breeds – the Boxer and the Mastiff – were developed in Europe. The Boxmas was also said to have originated in Europe, although the year is unknown. Hybrid breeds were often developed in order to decrease medical diseases and develop healthier dogs. There are conflicting reports as to how the Boxer was originally developed. It is reported that the Boxer was developed from Germany in order to retain qualities from its ancestors – the Dogue de Bordeaux and the old fighting dog from Tibet. The Boxer continued to be modified for its appearance in order to create a more attractive canine. Other research suggests that this breed was developed by now-extinct breeds such as the Danziger Bullenbaiser and the Brabenter Bullenbaiser in Central Europe. In the 1830s, German hunts cross-bred these breeds in order to develop a new breed that was tough and agile. In 1895, the Boxer was said to have been established. The Boxer became a favorite among the military and police forces in the 1900s. In 1904, the Boxer was registered with the American Kennel Club. In 1940, the Boxer won Best in Show. The Boxmas’ other parent breed – the Mastiff – has been mentioned as early as the 6th century B.C. The Mastiff became a Roman favorite and was used as a gladiator in the arena. Its massive size allowed it to perform jobs consisting of guarding, watching, and search and rescue tasks. Sir Piers Legh was one of the most favorite Mastiffs who stood guard over the battle of Agincourt. This lovable canine was imported to America in the 1800s and almost became extinct in Europe during World War II. While its ancestors were trained to protect, today’s Mastiff is also a loyal companion willing to please its family.