My mother used to be a teacher and as a child growing up I have always bee very curious about teachers.
A teacher is also called a school teacher
When did the profession of being a teacher originate?
I don't know. In ancient civilization in Egypt and greece teachers help others acquire knowledge or valves 
How many different types of teachers are there or do they all come under one umbrella? 
So many. Informally, anyone can take the role of a teacher
To be a formal teacher, how long would it take oneself to get the qualifications needed?
When showing a friend something is teaching 
Can you name me a great teacher currently or in history that has shaped our society as we know it? I have always been curious as to see peoples perspective n this question.
or college. 
Some other professions may involve a significant amount of teaching (e.g. youth worker, pastor).
In most countries, "formal" teaching of students is usually carried out by paid professional teachers. This article focuses on those who are "employed", as their main role, to teach others in a "formal" education context, such as at a school or other place of "initial" formal education or training.
Duties and functions.
A teacher's role may vary among cultures
curiosity and both her parents were supportive of her interest in science, she did not always see the same support from her teachers. When Jemison told a kindergarten teacher she wanted to be a scientist when she grew up, the teacher assumed she meant she wanted to be a nurse. Seeing a lack of female astronauts during the Apollo missions also frustrated Jemison. She later recalled, "everybody was thrilled about space, but I remember being irritated that there were no women astronauts."
Jemison began studying ballet at the age