Anyways, technically it's not that after 1900, but the POD is so close, I decided it'd go better here.
The POD is in 1887, where doctors operate successfully on Frederick III rather than doing a somewhat shoddy job like in OTL. A year later, rather than dying, the Kaiser is still a healthy living man. However, his fathers health is declining. Wilhelm I manages to grasp onto life a bit longer than in OTL and perishes Christmas day, 1888. Frederick III is coroneted as the new Kaiser of the German Empire in January. At the same time, Georges Boulanger in France launches a successful coup in France after being egged on to so so by his supporters, declaring himself (or being coerced to do so) as President of the Fourth French Republic. The stage is set for the twentieth century.