The Bodhi Tree is located in Bodh Gaya, one of the most sacred pilgrimage sites for Buddhists, where Siddhartha Gautama achieved enlightenment.

Ashoka's rock and pillar edicts contain his administrative policies, moral teachings, and principles of governance, serving as primary sources for understanding his rule.

The Kosi River, originating in Nepal, is a major tributary of the Ganges and flows through Bihar. It is known as the 'Sorrow of Bihar' due to frequent floods.

Rajgir (Rajagriha) was the capital of the ancient Magadha kingdom, one of the most powerful states in ancient India.

The Mauryan Empire ruled for approximately 137 years (322-185 BCE), with its capital at Pataliputra. Calculation: 322 BCE to 185 BCE = 137 years.

The Mahabharata contains references to Magadha as a powerful and influential kingdom in ancient India, particularly during the Vedic and post-Vedic periods.

Mahavira, the 24th Tirthankara and founder of Jainism, was born in Vaishali. The city also held the Second Buddhist Council.

According to the 2011 Census of India, Bihar had a literacy rate of approximately 47%, which is among the lowest in India.

Bhagalpur is renowned for its Tassar silk production and is known as the 'Silk City of India'.

The Sone River forms a boundary between Bihar and Uttar Pradesh for a considerable portion of its course before joining the Ganges.