Indra, the god of thunder and war, Agni, the god of fire, Varuna, the god of the sky and water, and Soma, the god of intoxicating drink, dominated the Vedic pantheon. These deities were worshipped through elaborate sacrificial rituals involving the sacrifice of food, ghee, and animals.

Rig Vedic Age is in between 1500-1000 B.C.

There are four Vedas: the Rigveda, the Yajurveda, the Samaveda and the Atharvaveda. Each Veda has been subclassified into four major text types - the Samhitas (mantras and benedictions), the Aranyakas (text on rituals, ceremonies, sacrifices, and symbolic-sacrifices), the Brahmanas (commentaries on rituals, ceremonies, and sacrifices), and the Upanishads (texts discussing meditation, philosophy and spiritual knowledge). Some scholars add a fifth category – the Upasanas (worship).

A fundamental concept in modern mathematics is the decimal system, which uses ten digits (0-9) to represent all numbers. The concept of zero, which represents the absence of a value, is also an important part of the modern numeral system. Both of these ideas originated in India during the Gupta period and spread to the rest of the world.

1028 hymns are in Rig Veda.

The Gayatri Mantra, also known as the Savitri mantra, is a highly revered mantra from the Rig Veda (Mandala 3.62.10), dedicated to Savitr, the Sun deity. Gayatri is the name of the Vedic meter in which the verse is composed. Its recitation is traditionally preceded by oṃ and the formula bhūr bhuvaḥ svaḥ, known as the mahavyahrti, or "great (mystical) utterance". Vishvamitra is said to have created Gayatri Mantra.

Swaraswati is the holy river according to Hinduism.

Chandragupta II was known for his military conquests, patronage of the arts, and support for Hinduism's spread. His reign is often regarded as a golden age in Indian history, and he is remembered as one of the most powerful and successful Indian kings.

The warrior class, the Kshatriyas, were expected to protect society and engage in warfare. They were also in charge of enforcing the law and keeping society in order. While some Kshatriyas may have worked in agriculture or trade, war was their primary occupation.

10 Mandalas exist in Rig Veda.