If it is said what makes the Hindu culture prominent? It is Hindu Vedas. They are the soul of Hindu culture and provide the idea of who is the founder of Hinduism. There shouldn’t be any debate on Vedic religion vs Hinduism because Vedic religion is the source of Vedas and Vedas are related to Hinduism.
There are several Hindu scriptures among them Puranas and Upnishads have found prominent places. These scriptures are the Divine powers eternally residing in the Divine abode of God. Brahma (a Hindu prominent God) has introduced the scriptures through Rishis (sages). The latest reproduction of those scriptures was through Bhagwan Ved Vyas before Kaliyug, 3102 BC but their first manifestation was trillions of years ago. So, Hinduism history is the oldest from all the religions in the world.
There are many unlimited Divine personalities living in the Divine abodes of God. They are categorized into two categories- Maya inflicted souls, those who were considered as a God through devotion and God’s grace and the other is who is the eternally Divine souls or eternal Saints, they are not under the influence of Maya. These eternal Saints descend on the earth, conceive the Vedas and the Upnishads and several other religious holy books of Hindus. There are various eternal souls like Manu, Ambarish, Dhruv, Mandhata, Raghu and Bhagirath, establishes various disciplines under the Hindu Dharma. There are several other Divine powers who came to the earth in many forms like Ganga, Yamuna and Narmada in the Bharatvarsha in metaphysical form to guide people. In this way, the Puranas contain many stories, events and the accounts of those Saint souls who glorified the history of Bharatvarsha and set an example of a great Hindu culture.
So, overall the Hindu scriptures are associated with the devotional aspect of a personal form of God and these holy books compile all the Darshan Shastras.
You will be surprised to know that some certain stories of Puranas and the Bhagwatam travelled to the West in the earlier days which were adopted as the religious mythological imaginations of those countries. So the religious myths of the Romans, Greeks, Assyrians and Europeans were based on the broken stories from the Hindu mythologies.
There are 4 Vedas- Rigved, Yajurved, Samved and Atharvaved. There are 4 Upvedas- Brahman, Aranyak and Upnishads. The Vedangas are Vyakaran (Sanskrit Grammar), Jyotish, Nirukt, Shikcoha and Cfihand. The 4 Kalp sutras are Shraut, Grihya, Dharma and Shulb. The 18 Puranas are Brahm, Padm, Vishnu, Vayu, Bhagwat Maha, Narad, Markandeya, Agni, Bhavishya, Brahm Vaivart, Ling, Varah, Skand, Vaman, Kurm, Matsya, Garud and Brahmand.