Why were the Nuremberg Laws so effective in discriminating
against German Jews?

It was in Nuremberg, officially designated as the "City of the Reich Party Rallies," in the province of Bavaria, where Adolf Hitler and his Nazi Party in 1935 changed the status of German Jews to that of Jews in Germany, thus "legally" establishing the framework that eventually led to the Holocaust.

Ten years later, it would also be in Nuremberg, now nearly destroyed by British and American heavy bombing, where surviving prominent Nazi leaders were put on trial for war crimes and crimes against humanity.

The war in Europe ended in May 1945, and soon the attention of the Allies turned to prosecuting those Third Reich leaders who had been responsible for, among other things, the persecution of the Jews and the Holocaust.

The trials began November 20, 1945, in Nuremberg's Palace of Justice, which had somehow survived the intense Allied bombings of 1944 and 1945.

The next day, U.S. Supreme Court Justice Robert H. Jackson, named by President Harry S. Truman as the U.S. chief counsel for the prosecution of Axis criminality, made his opening statement to the International Military Tribunal.

"The most serious actions against Jews were outside of any law, but the law itself was employed to some extent. They were the infamous Nuremberg decrees of September 15, 1935," Jackson said.

Explanation:

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the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.