Q. Which clan established World's first republic in Vaishali?
Answer:
Licchavi
Notes: Licchavi clan established world's first republic in Vaishali. Licchavi clan existed in the Kathmandu Valley in modern-day Nepal from approximately 400 to 750 CE. The Licchavi clan originated from Vaishali and Muzaffarpur and conquered Kathmandu Valley. The Lichchhavis had elected representatives to rule them.