Title card and intro for story 'Trotsky Assassinated in Mexico'

The transcript introduces the date August 21st, 1940, and hints at an upcoming story.

What significant date is introduced in the video?

• July 4th, 1776

• January 1st, 2000

• August 21st, 1940

• December 25th, 1990

What is mentioned to follow the introduction of the date?

• A detailed analysis

• A historical debate

• A scientific experiment

• A story