I believe the answer is: More Americans disliked Hoover
During the bonus army 1932, around 43,000 ex-soldiers marched together to Washington D.C in order to obtain compensation that was promised to them for their service during the wars. This march exposed Hoover for not keeping his promise, which made many Americans disliked hoover even more.
He improved education by releasing his book “A Grammatical Institute of the English Language” which would be used for over 100 years to teach children how to read and spell. He later released another much more important book, one of most well known dictionaries at the time “American Dictionary of the English Language” which defined over 65,000 words.
The factors are 2, 4, 5, 10 ,20, 25 ,50.
The Ku Klux Klan<span> targeted African Americans, the 'New Immigrants', Jews, Catholics and any other groups who represented "un-American" values or beliefs such as organized labor. In the 1920's the members of the KKK exceeded 4 million.</span>
