  Two important and unpleasant events occurred in Albert Einstein's life in
1920: That August an antirelativity rally was held in the large auditorium of
the Berlin Philharmonic, and a few weeks later Einstein was drawn into a tense
and highly publicized debate with Philipp Lenard on the merits of relativity at
a meeting in Bad Nauheim, Germany. I review these events and discuss how they
affected Einstein in light of new documentary evidence that has become
available through the publication of Volume 10 of the Collected Papers of
Albert Einstein.
