1914, August 1: Tree Predicts World War I?

The Legend:

In 1815, a poplar tree was planted in Jena, Germany, to celebrate and commemorate the end of the Napoleonic war with France. Ninety-nine year later, the tree suddenly toppled over on August 1, 1914... the day World War I started.


        I have only one source for this story at the moment -- Ripley's Strange Coincidences -- so it's marked as both 'needs investigation' and 'unreliable' until I can dig into it.