Car/automotive industry had the greatest impact on the economy in the 1920s, I believe.
Answer:
The term is "First 100 days"
Explanation:
When Franklin Roosevelt assumed the responsability to be the president number 32 in The United States, in 1933 his country was facing one of the most difficult situations in history known as The Great Depression.
The term "First 100 days" was coined by him when giving a radial address on July the 24th 1933. This period of time was making reference to the first one hundred days of his job at the white house.
characteristic is the answer of your given question.
