Which era is credited with causing such changes as improving workplace conditions, food safety, housing standards, and passage of the sixteenth, seventeenth, eighteenth, and nineteenth amendments?

The Progressive Era

Explanation:

The Progressive Era was a period of widespread social activism and political reform. This took place from the 1890s to the 1920s. The Progressive Era led to major improvements in various social problems, such as industrialization, urbanization, immigration, and political corruption. It saw the passage of several amendments to the Constitution and the regulation of monopolies and corporations.

copernicus finished the first manuscript of his book, "de revolutionibus orbium coelestium" ("on the revolutions of the heavenly spheres") in 1532. in it, copernicus established that the planets orbited the sun rather than the earth. he laid out his model of the solar system and the path of the planets.