 The theory that Jamnia finalised the canon, first proposed by Heinrich Graetz in 1871, was popular for much of the 20th century.However, it was increasingly questioned from the 1960s onward, and the theory has been largely discredited.The Talmud relates that some time before the destruction of the Second Temple in 70 AD, Rabbi Yohanan ben Zakkai relocated to the city of Yavne/Jamnia, where he received permission from the Romans to found a school of "halakha" (Jewish religious law).