Who are the Eight Masters in Tang and Song Dynasties?

The so-called eight masters in Tang and Song Dynasties refer to Han Yu and Liu Zongyuan in Tang Dynasty and Ouyang Xiu, Ceng Gong, Wang Anshi, Su Xun, Su Shi and Su Zhe in Song Dynasty. Their achievements are mainly in prose, so they are also called "eight masters in Tang and Song Dynasties". Their articles not only shocked the Tang and Song literary circles, but also set a good example for later prose.