No, Johann Christian and Sebastian Bach are not the same people. Although they shared the same last name and were both accomplished musicians, they were two distinct individuals. Johann Sebastian Bach was born in 1685 and is considered one of the greatest composers of the Baroque period, known for his intricate polyphonic counterpoint and profound understanding of music theory. On the other hand, Johann Christian Bach, born in 1735, belonged to the Classical period and was recognized for his elegant and expressive works, incorporating characteristics of both Italian opera and German symphonism.