What different technique in steelmaking did foreign competitors use that made american steel making outdated

How did the roaring 20s mark the end of the progressive era? a. mass production reduced wealth disparity and turned public opinion pro business b. labor unions won big legislative gains in workers rights and disbanded c. public officials cut taxes on businesses and reduced spending on services d. america increasing influence in world affairs redirected public attention to foreign policy

Why have some historians rejected the labels bc and ad as laels for periods in world history

Describe the geography of the nile valley . how did this geography affect civilizations that emerged in the nile valley