Henry olcott saw the need to unite this religion's teachings.

Answer

Henry Olcott saw the need to unite the Buddhism religion teachings

Explanations

While living with Blavatsky, Olcott was eager to learn more about Buddhism. He concentrated more on pure and original teachings .Scholars today explain Olcott ideas about pure and original Buddhism as a reflection of universal brotherhood. These two individual were later known as the white Buddhist in Sri Lanka.

answer is :

many churches split during the movement.

new religions grew in popularity.

according to my research (britannica and quizlet) the first settlements were along the huang river because it could give the crops more fertile soil that really it out. this was due to the yellow slit caused by floods of the river.