1937 (9 Fire Year / 2 Soil 9-Year Cycle / 1 Water 81-Year Cycle)

This is interesting because the annual ki and ki of the 9-Year cycle is the same as 2018. (The ki of the 81-Year cycle, however, is notably different.)

February 5- President Franklin D. Roosevelt proposes a plan to enlarge the Supreme Court of the United States.
[expansive]

February 21- The first successful flying car, Waldo Waterman's Aerobile, makes its initial flight.
[notable observation]

March 18- The worst school disaster in American history, a natural gas explosion in New London, Texas kills over 295 students and teachers.
[expansive / explosive]

April 17- Nine Fire personality, Daffy Duck, debuts in his first animated short "Porky's Duck Hunt".
[entertainment / communications / advertising]

May 6- The Hindenburg bursts into flames when mooring to a mast in Lakehurst, New Jersey.
[notable observation]

July 2- Amelia Earhart and navigator Fred Noonan disappear over New Guinea during Earhart's attempt to become the first woman to fly around the world.
[notable observation - see June 1928]

July 5- The highest recorded temperature in Canada, at Yellow Grass, Saskatchewan, is 45C (114F).
[naturally warm / tropical conditions]

July 22- The United States Senate votes down President Franklin D. Roosevelt's proposal to add more justices to the Supreme Court.
[Nine Fire can be controlled by people!]

August 5- The Soviet Union initiates one of the largest campaigns of the Great Purge, to "eliminate anti-Soviet elements". Within the year, at least 724,000 people are killed.
[chaotic]

September 2- The Great Hong Kong Typhoon of 1937 kills an estimated 11,000 persons.
[naturally warm / tropical conditions]

November 5- Adolf Hitler holds a secret meeting and states his plans for acquiring "living space" for the German people.
[expansive]

December 21- Walt Disney's "Snow White and the Seven Dwarfs", the first feature-length animated cartoon with sound, opens and becomes a smash hit.
[entertainment / communications / advertising]

January 25- A brilliant aurora borealis described variously as "a curtain of fire" and a "huge blood-red beam of light" startles people across Europe and is visible as far south as Gibraltar. Ten days later, on the first day of the 8 Soil year (revolution, change), Hitler gains command of Germany's military.
[notable observation]