The Wiener Holocaust Library in London has a fascinating new exhibit on antisemitism powered by the idea that much of what we know about antisemitism comes from those fighting it. "Fighting Antisemitism from Dreyfus to Today" starts with the Dreyfus Affair of the 1890s, when Jewish army officer Alfred Dreyfus was falsely accused of treason, convicted and sentenced to life in prison in France, and ends in our current moment of resurgent antisemitism. To show how timely the exhibit is, it even includes a poster of a recent library exhibition on Kristallnacht that was defaced in the London Tube.