Why was the purchase of alaska by the united states in 1867 called "seward's folly"?

How did the industrial revolution give an advantage to industrialized european nations over non-industriallized nations?

Why was galileo galilei brought before the inquisition? for insisting that earth stands still at the center of the universe for proving that planets move in elliptical orbits for putting forth evidence that earth moves around the sun for suggesting that the sun is a star

What was the national government’s biggest concern is facing a war under the articles of confederation