They were important because they were not controlled by the government or the church. Therefore they were free to explore in scientific experiments as much as they wanted without these controls.

Tsar Alexander II initiated a series of importantreforms in Russia. During his reign, the country's rail and communication networks were improved, resulting in increased economic activity and the development of banking institutions.
Sacajawea has the Native American woman that helped Lewis and Clark, mainly due to her brother being the leader of a tribe, which they needed to borrow horses from.
The rhetoric's that was used in these speeches have been grouped below:
<u>Evil empire speech:</u>
- Portrayed the soviet union as an enemy.
- appealed to audiences sense of justice
<u>Tear down this wall speech:</u>
- appealed to audiences sense of morality.
- Challenged the soviet union to do the right thing.
<h3>Summary of the evil empire speech</h3>
This speech was delivered by Ronald Reagan during the cold war by the US and the Soviets.
He referred to the soviet as a force of evil that was a threat to the modern world.
<h3>Summary of the Tear Down This Wall" speech</h3>
This speech was given by Reagan to Gorbachev urging him to tear down the wall that they had built in Berlin.
Read more on the Soviet union here:
brainly.com/question/545380