Pranayama is the fourth limb of the eight limbs of Ashtanga Yoga mentioned in verse 2.29 in the Yoga Sutras of Patanjali. Patanjali, a Hindu Rishi, discusses his specific approach to pranayama in verses 2.49 through 2.51, and devotes verses 2.52 and 2.53 to explaining the benefits of the practice.
The Communist Manifesto was first published in February 1848 in London. It was written by Marx and Engels for the Communist League, an organisation of German emigre workers living in several western European countries.
Great Depression Fact 26: During the Great Depression author John Steinbeck wrote The Grapes of Wrath and Of Mice and Men about the lives of the people living in the Prairies states and the devastating effects of the Dust Bowl.