Buddhism originally started in India where a little boy wondered what was outside the palace walls his name was Siddhartha Gautama. After one day of tutoring, Siddhartha and the tutor's son wandered outside the palace walls. When they were outside the walls they saw a poor man, sick man, and a corpse. Siddhartha wondered if that will happen to him. So after all those days of tutoring, he meditated by a sacred tree in the woods. Finally, he came back and was named Buddha (enlightened one). Then, he started to teach Dharma (teaching of Buddhism) to other people. After a few years, Buddhism was spreading out of India because traders on trade routes wanted to know the religions and cultures of India. Now, Buddhism is one of the most important religions in the world.
Siddhartha Gautama and the tutor's son is getting tutored by the tutor.
Siddhartha goes and meditates by a sacred tree. Also, he finds nirvana.
Siddhartha comes back from the sacred tree and now is named is Buddha. Siddhartha teaches Dharma to other people.