Ballet started in the 15th Century in the Renaissance court of Italy. The earliest references I can find to "Ballet" refer to Roman times when even then, it is thought to have originated with the Greek Tragedies. Like most other art forms, it was lost during the Middle Ages and revived again during the Renaissance period. I suspect that the question refers to "Classical Ballet". J S Bach (1685-1750) was a prolific composer, but did write anything labelled specifically as a "Ballet", although many modern ballet companies perform ballet to Bach's music, such as the Canata's which are essentially a Psalm or other religious text set to music. W A Mozart (1756-1791) wrote music for ballets specifically. My assumption being that "Classical Ballet" appeared between the death of Bach and the rise of Mozart. Somebody of superior subject knowledge may be able to correct or clarify my assumption.
in the fifteenth century
Ballet began in France and Russia.
~this is the 21st century
Ballet began in the 15th century.
Ballet origanated in France in the early fifteenth century.
in the 17th century
Ballet began in the 15th century, in the Italian Renaissance courts.
in the fifteenth century
Ballet emerged in the late fifteenth-century Renaissance court culture of Italy as a dance interpretation of fencing (from wikipiedia)
Ballet began in France and Russia.
~this is the 21st century
Ballet began in the 15th century.
Ballet came from FRANCE probably because a lot of BALLET words are FRENCH.France is in Europe.
Ballet origanated in France in the early fifteenth century.
Ballet originated in the 15th century in the Italian renaissance, then developed into France and Russia.
Ballet was made in the Italian Renaissance courts of the 15th century.
Ballet emerged in late 15 century