Why did the united states largely abandon its isolationist foreign policy in the 1890s?

Since the nation's founding, American foreign policy had been organized around a commitment to remaining outside European affairs and keeping Europe out of its own. The work of fulfilling "manifest destiny" through continental expansion had largely kept the United States out of European late-nineteenth-century empire building.

Explanation:

The Industrial Revolution increased the material wealth of the Western world. It also ended the dominance of agriculture and initiated significant social change. The everyday work environment also changed drastically, and the West became an urban civilization.