Question: (I also put the question as a attachment)
Which event from 1923 should be added to the timeline?
A. Washington Disarmament Conference is held.
B. Kellogg-Briand Pact is adopted.
C. Treaty of Versailles is signed.
D. Warren Harding dies.
Answer:
The event that should be added on the timeline for 1923 is D. Warren Harding dies.