Karl A. Menninger once said “What the teacher is, is more important than what he teaches.” And thereby to celebrate what they really are, to appreciate their efforts and to honor their special contributions in a particular field area or the community in general.
The idea of celebrating Teacher's Day arose independently in many countries during the 20th century where in most cases, a local educator or an important milestone in education was celebrated which is the main reason for countries not having a common Teacher's Day throughout the world.
Teachers’ Day is celebrated all over the world albeit the date varies from country to country and so does the celebration style. Like in the US, the entire first week of May is observed as Teacher's Appreciation Week while the last day of the week, people celebrate as Teacher's Day.