Answer:
Mutual defense alliances was a significant cause for starting World War I. Basically, what happened was all of the countries were somehow alliances with other countries. Conflict between different countries caused the allied countries to be involved which eventually led to World War I.
Explanation:
In the early 17th century Galileo was indeed convicted of heresy because he claimed that Earth revolved around the Sun. This conviction was an example of an religiously motivated conviction of someone who had the best intentions in mind in the sense of mankind achieving greater knowledge.
On June 29, 1947, as the first president to address the National Association for the Advancement of Colored People (NAACP), Harry Truman pledges his support for upholding the civil rights of all Americans.
Yes i am pretty sure he did because he wanted to spread more power out to the people
hope this helps