Answer:
After the Wright brothers began flying in 1903, mechanics from Europe and the U.S. began experimenting with different designs. World War I was a boon for the pastime of aviation because every country at war realized how important airplanes could be. At first, planes got more stable and durable, but by the end of the war, they were being designed to fight against each other. They had become more maneuverable, could be fixed with mounted guns, and were faster than ever before.
Answer:
selling many products at the fair
Explanation:
Answer:
Sandford, legal case in which the U.S. Supreme Court on March 6, 1857, ruled (7–2) that a slave (Dred Scott) who had resided in a free state and territory (where slavery was prohibited) was not thereby entitled to his freedom; that African Americans were not and could never be citizens of the United States.
Explanation:
