<span> Two-thirds of the legislatures of the </span>States<span>. Hope i helped!</span>
Willhelm Wundt, the founder of the Leipzig Laboratory at Leipzig University, made his laboratory for the general study of PSYCHOLOGY.
After World War 1, prevalent attitudes in America included one of not supporting the US being involved in foreign affairs. World War 1 started in 194 and ended in 1918. After the First World War, isolationism became prevalent in American society. Another attitude that developed was nativism.
here's the website: www.answers.com/Q/What_attitudes_became_prevalent_in_America_after_World_War_