One school, led by Shammai the Elder (c. 50 BC-c. 30AD), took a rigorist view especially on matters of cleanliness and uncleanliness, an explosive area since it militated strongly against the ability of ordinary, poor people to achieve holiness. The rigorism of the Shammai school, indeed, was eventually to take his descendants and followers out of the rabbinical-Judaic tradition altogether, and they vanished like the Sadducees themselves.
