How did patents support the work of inventors such as thomas edison

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.

2. what was the dred scott decision about? what do we learn from this supreme court case?

What are some differences between mccarthy’s “west virginia speech” and his “letter to president truman”? what are some similarities?