There have been many government actions meant to help unify the nation, but the greatest was done when the Articles of Confederation were replaced by the Constitution, since this action put into place a much stronger-central government and "united" the states.
The statement that is false about the Tuskegee study is that the U.S. Public Health Services allowed participants to receive effective treatment when penicillin became widely available after World War II. Option C is correct.
Between 1932 and 1972 the U.S. Public Health Service carried out this clinical experiment or study known as Tuskegee aiming to to analyse the natural history of untreated syphilis. It was considered unethical. It was conducted by the Public Health Service along with the Tuskegee University, 600 impoverished, African-American sharecroppers were subjected to this study and it showed that 399 out of them had latent syphilis and 201 did not contract the disease.
The Cold War was one of the events that marked the end of the terrifying Soviet Union from Russia
The Articles of Confederation were created the way they were because of the way the British government had oppressed the American colonists. Therefore, the Articles of Confederation were structured in a way that allowed the federal government little to no power over taxes or individual states. Each state has its own individual government that created its own laws and printed its own money.