Gymnastics is a sport requiring physical strength, flexibility, agility, coordination, and balance.
The word gymnastic comes from Greek gymnastikos "fond of athletic exercises" and gymnos "naked," because Greeks exercised and competed in the nude.
Types of gymnastics: artistic, rhythmic, trampolining & tumbling, aerobic, acrobatic.
Artistic gymnastics is the best known type of competitive gymnastics, typically including uneven bars, balance beam, floor exercise, and vault (women's events) and floor exercise, pommel horse, still rings, vault, parallel bars, and high bar (men's events).
Rhythmic gymnastics: Typically only women compete in rhythmic gymnastics, combining ballet, dance, and gymnastics with 5 routines using ball, ribbon, hoop, clubs, and rope. However, Japan has begun a men's version rhythmic gymnastics.
Olympics: USA Gymnastics.
Boys and girls gymnastics: Men and women compete in different gymnastic events.
Learn more at wikipedia: gymnastics.