By whom the first republic of the world was established in Vaishali –

Where was the first republican system of the world during 6th century B.C. located?

Chand-Pradyota was the ruler of which ancient republic?

Who was the founder of Nanda Dynasty in Magadha?

Which was the first capital of ancient Mahajanapada Magadh?

In which century did the first Magadhan Empire rise?