What was the MOST important or historically significant change or development that occurred in the United States during the late 19th and early 20th centuries? Why?

The late 19th and early 20th century was a period of transition architecturally, marking the entrance into a new era of building. This was the beginning of forward looking architectural design with styles not based on previous building forms.

answer: economic globalization is the increasing economic integration and interdependence of national, regional and local economies across the world through an intensification of cross-border movement of goods, services, technologies and capital

answer; /// i believe that the correct answer is (gerrymander or gerrymandering)good luck