Ashoka
Ashoka
The Empire did not make an official state religion in India. Throughout its history, India has been known for its religious diversity, with various religions coexisting and flourishing. The Mauryan Empire under Emperor Ashoka did adopt Buddhism as its preferred religion, but this was an exception rather than the norm.
India does not have an official state religion; it enshrines the right to practice, preach, and propagate any religion. Reference link is given below.
Theodosius I was the emperor who made Christianity the state religion.
None. The only countries I know of whose official state religion is Buddhism is Cambodia and Bhutan.
Basically Buddhism although the official state of the religion is Drukpa Kagyupa
Christianity became the official state religion under Theodosius I in 380 AD. Many people erroneously think that the emperor Constantine made it the official religion, but this is incorrect. Constantine only made it a legal religion which meant that Christians were no longer outlaws and were free to practice their faith.
Under what Vietnamese dynasty did Buddhism become the state religion? The Tang dynasty Nope. It was the Ly dynasty. OW
Although there was no official state religion during the Sui Dynasty, Buddhism became the de facto state religion during Emperor Wen's reign. Confucianism was also present but in decline and Taoism retained a strong following.
Uttar Pradesh
Prince Shotoku established Buddhism as the state religion of Japan.
The Tang dynasty