No one knows when yoga was born. We only know that it happened thousands of years ago.
First, yoga knowledge was given orally from a teacher to students and then - in written form. It is believed that four written evidences of yogic knowledge have reached us. They are known as four Vedas: Rigveda, Yajurveda, Samaveda and Atharvaveda.
In ancient times yoga was one of the major systems. It allowed a person to disclose and to fulfill his/her potential. In difficult times (there were many of them during the course of history) yoga helped people to survive.
Unfortunately, only some crumbs of knowledge have reached us. It is believed that in ancient times yoga was spread widely among different people and countries.
Until now in the oldest historical legends and myths of many countries from Europe to Egypt, the Scandinavian countries, Russia and the Middle East, we can find echoes of this doctrine. But later due to unknown reasons the area of yoga significantly narrowed down to the sizes of ancient India and some neighboring countries. These were the territories today’s Afghanistan, Pakistan, Tajikistan, Central Asia, modern India, Nepal, Bhutan, Tibet, and South-East Asia. At the moment, this aura has narrowed and now it includes only the territory of modern India and the Himalayan countries.