Guido of Arezzo
In the 12th century, a development in teaching and learning music in a more efficient manner had arisen. Guido of Arezzo's alleged development of the Guidonian hand, more than a hundred years after his death, allowed for musicians to label a specific joint or fingertip with the gamut (also referred to as the hexachord in the modern era). Using specific joints of the hand and fingertips transformed the way one would learn and memorize solmization syllables. Not only did the Guidonian hand become a standard use in preparing music in the 12th century, its popularity grew more widespread well into the 17th and 18th century. The knowledge and use of the Guidonian hand would allow a musician to simply transpose, identify intervals, and aid in use of notation and the creation of new music. Musicians were able to sing and memorize longer sections of music and counterpoint during performances and the amount of time spent diminished dramatically.
Boxing glove
The use of hand protection in fighting contests undertaken for sport has been known since Ancient Greece. However, the gloves were very different from those of modern boxing, as was the sport itself. In Ancient Greece, it was common practice to tie strips of leather round the hands for protection. In Roman times, this developed into the gladiatorial cestus, with metal added to the gloves to inflict greater damage. The oldest surviving example of boxing gloves date to around 120 AD, coming in the form of two non-matching leather bands that were recovered from excavations at the Roman fort of Vindolanda. The brutality of the sport caused the boxing to be banned in AD 393.