History of atheism

Atheism (derived from the Ancient Greek ἄθεος atheos meaning "without gods; godless; secular; denying or disdaining the gods, especially officially sanctioned gods"[1]) is the absence or rejection of the belief that deities exist. The English term was used at least as early as the sixteenth century and atheistic ideas and their influence have a longer history. Over the centuries, atheists have supported their lack of belief in gods through a variety of avenues, including scientific, philosophical, and ideological notions.
In the East, a contemplative life not centered on the idea of deities began in the sixth century BCE with the rise of Jainism, Buddhism, and various sects of Hinduism in India, and of Taoism in China. Within the astika ("orthodox") schools of Hindu philosophy, the Samkhya and the early Mimamsa school did not accept a creator-deity in their respective systems.
Philosophical atheist thought began to appear in Europe and Asia in the sixth or fifth century BCE. Will Durant, in his The Story of Civilization, explained that certain pygmy tribes found in Africa were observed to have no identifiable cults or rites. There were no totems, no deities, and no spirits. Their dead were buried without special ceremonies or accompanying items and received no further attention. They even appeared to lack simple superstitions, according to travelers' reports. The Vedas of Ceylon admitted only the possibility that deities might exist but went no further. Neither prayers nor sacrifices were suggested in any way by the tribes.[2]