Which of the following explain the significance of technological innovations as shown in these photos?

Is harry truman considered a hero or a tyrant for dropping the atomic bombs on hiroshima and nagasaki? (need a paragraph)

Plz which of the following countries did not claim the oregon country in the early 1800s. a. russia. b. britain. c. the united states d. france.

Match these items. 1 . stephen douglas published "north star" 2 . frederick douglass first african slaves arrived in jamestown 3 . crittenden compromise proposed kansas-nebraska act 4 . republican party extend 36° 30' line to california 5 . abolitionists servitude in exchange for passage to the united states 6 . indentured struggle between proslavery and antislavery groups 7 . jefferson davis formed to prevent spread of slavery 8 . "bleeding kansas" wanted slavery abolished 9 . uncle tom's cabin president of confederacy 10 . 1619 harriet beecher stowe