The reason why the emancipation proclamation was important was because: it freed all the enslaved people in the united states.
<h3>Whaty was President Lincoln's emancipation proclamation?</h3>
This was the insistence by President Lincoln that the American civil war was a war for the enslaved to have their freedom.
The civil war was because the South had disagreed to the freedom of the enslaved blacks in the country.
Read more on President Lincoln here: brainly.com/question/7955162
the right to petition or protest a king's decision
The correct answer is B, as the civil rights leader and great-grandson of a slave who was one of the best lawyers of his day, winning 13 of the 15 cases he argued before the Supreme Court was Thurgood Marshall.
Thurgood Marshall was an Associate Justice of the Supreme Court of the United States, serving from October 2, 1967 until October 1, 1991, the first African-American Associate Justice of the country.
Before becoming a judge, Marshall was a lawyer who was best known for his high success in arguing before the Supreme Court, and for winning the Brown v. Board of Education case, a decision that prevented racial segregation in public schools.