Answer:
He held hearings to investigate communists in the US government.
Explanation:
that was one of his main accomplishments
He was the eastern emperor during the first crusade.
Answer
The Rocket Technology
Explanation
Konstantin Tsiolkovsky was the Father of Modern Astronautics who in 1898 first proposed the idea of space exploration by rocket. In his first report he suggested the use of liquid propellants for rockets in order to attain a higher range. Early in the 20th century, Robert H. Goddard an American published a pamphlet attaining higher altitudes in rockets with a mathematical model called the meteorological sounding rocket.
Answer:
Lack of power to enforce taxation
Explanation:
The Articles of Confederation couldn't collect money from the states, they could only ask nicely. When the only state that ended up paying taxes was Virginia, Congress was basically broke. They couldn't pay soldiers and had a hard time keeping up with the war.