Conversation so far:
What did this lead Marc Chagall to do?
In Russia at that time, Jewish children were not allowed to attend regular Russian schools or universities.
What is the worst?
Their movement within the city was also restricted.
Chagall therefore received his primary education at the local Jewish religious school.
What is the worst with these people?
At the age of 13, his mother tried to enroll him in a Russian high school, and he recalled, "But in that school, they don't take Jews.

Question: What did this make him try and do?
Self-contained rewrite: What did Russian schools not enrolling Jews make Chagall try and do?