First telephone: Alexander Graham Bell, Antonio Meucci, Amos Dolbear.
First atomic reader: Robert Oppenheimer.
who made theory that made atomic power possible: Einstein.
First labor union: Samuel Gompers.
Father of the hydrogen bomb: Edward Teller.
Answer:
The correct answer is A. A unique feature of the 2008 presidential election was that for the first time, an African American was elected president of the United States.
Explanation:
The 2008 presidential elections took place on November 4th and, as usual, were anticipated by almost two years of electoral campaign and by primaries for the selection of candidates. The elections were contested by the Republican candidate John McCain and the Democratic candidate Barack Obama, who prevailed in the competition. On January 20, 2009, Obama became into the first African-American to be elected as President of the United States.
The correct answer for this question is this one:
"The three most severe downturns in the united states economy since the 1920s is very a big challenging for the economy. It required them to double their effort to catch up. The economy is very important to the nation."
Answer:
The Compromise of 1876 effectively ended the Reconstruction era. Southern Democrats' promises to protect civil and political rights of blacks were not kept
Explanation: