Question: What is the year of the event that occured first, all 3 protocols of the League of Nations were registered, or Engelbert Dollfuss was born?
Sentence (from "Emil Fey"): Emil Fey (23 March 1886 – 16 March 1938) was an officer in the Austro-Hungarian Army, leader of the right-wing paramilitary Heimwehr forces and politician of the First Austrian Republic.
Relevant evidence: No