Final answer:
The passage in Animal Farm was most likely influenced by the 1905 massacre of protestors.
Step-by-step explanation:
The event that most likely influenced the writing of this passage in Animal Farm is the 1905 massacre of people who were protesting their poor living conditions.
This event is mentioned in the timeline as one of the major events in Russian history. The passage, spoken by one of the animals in the story, reflects the theme of rebellion against human tyranny, which is similar to the theme of the protestors' rebellion in 1905.
By connecting the historical event of the 1905 massacre to the theme of rebellion against human oppression, the passage highlights the animals' desire for freedom and their belief that overthrowing the human race will lead to prosperity and liberation.