Vaishali was the capital of the Lichchhavi republic, one of the earliest known republics in the world. It was also an important center during the time of Buddha and Mahavira.

The area of Bihar is approximately 94,163 square kilometers, making it the 13th largest state in India by area. It is one of the most densely populated states.

The Mahabodhi Temple Complex at Bodh Gaya is a UNESCO World Heritage Site. It dates back to the 5th-6th century and is one of the finest examples of brick temple architecture.

The Ganges River enters Bihar from Uttar Pradesh and flows eastward through the state before entering West Bengal.

Pataliputra (modern Patna) was the capital of the Mauryan Empire under Chandragupta Maurya, Bindusara, and Ashoka. It was one of the largest cities of ancient India.

Bodh Gaya is located in Gaya district and is where Gautama Buddha attained enlightenment under the Bodhi Tree.

Bihar became a separate state on November 1, 1956, following the States Reorganisation Act of 1956. Before this, it was combined with Orissa as Bihar and Orissa.

Nalanda University, located in Bihar, was one of the world's oldest universities and a center of Buddhist learning from the 5th to 12th centuries.

Patna is the capital of Bihar state. It is an ancient city located on the banks of the Ganges River and was known as Pataliputra in ancient times.

The Damodar River is called the 'Sorrow of Bengal' because it causes frequent floods in West Bengal and Bihar due to its unpredictable nature and heavy monsoon flows.