I want to know the answer to the following question:
In what year did Bell open his own school?
All the background I'm provided with is that "Teaching his father's system, in October 1872, Alexander Bell opened his "School of Vocal Physiology and Mechanics of Speech" in Boston, which attracted a large number of deaf pupils, with his first class numbering 30 students.". Is that enough to answer the question?
Answer: yes