Bulgarian educator and psychologist Georgi Lozanov emerged in the 1970's as a leading figure in the field of accelerated learning[?] with his theory of suggestopedia where various techniques, including breathing and music, were found to enhance learning.
... 3,014 m. Major rivers include the Amazon, the largest river in the world by volume, the Parana[?] with its impressive Iguaçu[?] falls, the Rio Negro, São Francisco[?], ...