Answer:
The correct answer is public sympathy. President Lyndon B Johnson convinced the US Congress to pass the Civil Rights Act of 1964 after Kennedy's assassination.
Explanation:
Herophilos in particular developed a body of anatomical knowledge much more informed by the actual structure of the human body then previous works had been.
Answer:
They were helpful in spreading necessary information across the empire.
The foundation of Jim Crow laws was that the "African Americans are culturally and intellectually inferior to white people."
The westward expansion came together with the development of technologies that created modern work environment that we see today. This require a lot of people to be self-capable to survive in such working environment.
This situation really reflect the iconic American ideal of self-reliant individuals that we see in our society today.
