How were the Jewish populations mistreated in the late 1800s?

When the Nazis came to power in Germany in 1933, Jews were living in every country of Europe. A total of roughly nine million Jews lived in the countries that would be occupied by Germany during World War II. By the end of the war, two out of every three of these Jews would be dead, and European Jewish life would be changed forever.

Answerthe distance to nearby stars;