In the course of further centuries these books in turn were superseded by new treatises; and in one school at least, that of the Maha-yana (great vehicle) there was eventually developed a system of metaphysics.
'The three rivers of 'north-eastern Siberia - the Yana, Indigirka and Kolyma - have the same general character, their courses.
The bay of the Yana, east of the delta of the Lena, is a wide indentation sheltered on the north by the islands of New Siberia.
How would you define yana? Add your definition here.