Upanishads is one of the many sacred texts of Hinduism.
Judaism is not a sacred text, it is a religion and that religion happens to have a sacred text. To learn more about Judaism's Sacred Text, read the Related Question.
The Upanishads and Vedas are associated with Hinduism, one of the oldest religions in the world. They are considered sacred texts in Hindu philosophy and spirituality, providing insights into cosmology, ethics, and metaphysics.
Sacred texts are shared between Hinduism and Buddhism, with both religions revering texts such as the Vedas and Upanishads. However, each tradition also has its own distinct scriptures, such as the Bhagavad Gita for Hindus and the Tripitaka for Buddhists.
The Holy Bible is the sacred text for Christians.
Hinduism has scriptures in the Vedas and Upanishads. The Vedas are considered the oldest sacred texts of Hinduism, containing hymns, rituals, and philosophies. The Upanishads are philosophical texts that explore the nature of reality and the self.
Confucianism.
Judaism
The main sacred text is Iliad and the Odyssey which were a series of poems written by Homer
Since atheism is not a religion or a belief system but an absence of those things, it has no sacred text, no tenets, no dogma. In addition the term "sacred" implies "handed down by a god". In atheism there is no god, therefor no handing down, therefore no text
No. The Talmud is an explanatory legal treatise in Judaism. It is not a "sacred text" nor is it affiliated with Christianity in any way. (The Jewish sacred text is the Tanakh or Jewish Bible.)
The Vedas were the oldest sacred texts in Hinduism and primarily focus on rituals and hymns, whereas the Upanishads are philosophical texts that explore metaphysical and spiritual concepts. The Upanishads also emphasize the concepts of karma, rebirth, and the ultimate goal of liberation (moksha) from the cycle of birth and death.
Originally Brahmanism was the Religion of Aryans. When they invaded India they brought their Religion & Sacred Texts to India. After that Dravidian culture began to Influence them.