Wind Orchestra was born in the era of ancient Egypt.In those days, bugles and drums were mainly used, and played accompaniments to march. In the era of ancient Rome, the formation got bigger and made the basis of the military music of the middle ages.
In the middle ages, three important things occurred. First, clarinets and piccolos were added to wind orchestra. Second, brass instruments developed more. Third, percussion section started playing an important role.
In 17th century, wind orchestra got active in Germany and France and so on, and got influence on art music. During 18th century, instruments used by wind orchestra got more and more different among countries, but the scale became almost same as what it is.
With the development of instruments, it got possible for wind orchestra to play many kinds of music. Before that time,wind orchestra usually played out of doors. However, by making concert hall bigger, wind orchestra got able to play similar effect to orchestra, then wind orchestra got regarded as one genre.