Answer:
The author believes that America has undergone significant progress that impacted positively on it. He said, "But collectively, the Progressive Era moved history forward and left behind a heritage that has made ours a better country and that will continue to improve the quality of life in America for generations to come." This shows that the author recognizes the positive changes America has undergone and he believes that these changes will last for a long time.
Step-by-step explanation:
In the article, "Progressive Era by Mike Kubic, the author mentions all the positive political, social and business reforms that happened in America during the Progressive Era that spanned from 1890 to 1920. He noted the contributions of people like Theodore Roosevelt, Upton Sinclair and Susan B. Anthony. These personalities fought to make America better.
Theodore changed the business atmosphere making it more accommodating for the commoners. Sinclair changed the public health sphere through his investigative journalism wile Anthony clamored for women's right as well as the end of racial discrimination of the blacks. Even though not all progressive ideas were welcomed by the American populace, significant progress was still made.