As a result, he immersed himself in "the history of the Jews, their trials, prophecies, and disasters", notes Wullschlager. She adds that beginning the assignment was an "extraordinary risk" for Chagall, as he had finally become well known as a leading contemporary painter, but would now end his modernist themes and delve into "an ancient past". Between 1931 and 1934 he worked "obsessively" on "The Bible", even going to Amsterdam in order to carefully study the biblical paintings of Rembrandt and El Greco, to see the extremes of religious painting. He walked the streets of the city's Jewish quarter to again feel the earlier atmosphere. He told Franz Meyer: