why do you think that the legend of king arthur was so popul

Because Le Morte d'Arthur was the first true novel written in English and earliest in
text as a legendary hero.Before this most of the stories and novels were written in French.
A chinese similar example would be "Shi Jing".Its from Qin dynisty,its the frist novel included all of the chinese poetries in just one novel.Its a legendary novel for the chinese to study.
诗经》是我国古代第一部诗歌总集,作者是先秦时代的群众.
都自己写的,看看行不 不懂问我