Nalanda University was one of the world's oldest universities and was a major center for Buddhist learning, attracting scholars from across Asia.

The Ganga River flows through Bihar and is the most important river for the state's agriculture, irrigation, and economy.

The Champaran Satyagraha was led by Gandhi to protest against the indigo plantation system where peasants were forced to grow indigo for European planters.

Bodh Gaya is where Siddhartha Gautama attained enlightenment and became Buddha under the Bodhi tree.

Bihar is one of India's major mica-producing states, with significant deposits in the southern plateau region.

The Kosi River flows through northern Bihar districts including Supaul, Araria, and Madhubani, frequently causing floods due to its unpredictable course.

Lord Mahavira attained moksha at Pawapuri in Bihar and spent much of his time in the Magadha and Anga regions of ancient Bihar.

Emperor Akbar strengthened Mughal control over Bihar and made it a prosperous province with better administration and tax systems.

Average rainfall = (1600 + 800) ÷ 2 = 2400 ÷ 2 = 1200 mm. Bihar has variable rainfall patterns with northern regions receiving more precipitation.

Jaya Prakash Narayan (JP) was a prominent freedom fighter and socialist leader from Bihar who played a key role in the Quit India Movement and later in social movements.