The Progressive Era, which lasted from the 1890s to the 1920s, was a time in the United States when people worked hard to make important changes in society. These changes aimed to fix problems that came from factories and big cities. Here are some key changes that took place:

1. Labor Reforms:

   • Laws were made to stop child labor, which helped reduce the number of working children by 50% from 1900 to 1910.
   • Minimum wage laws were created. This meant many women could earn more money. For example, by 1913, Massachusetts had set the minimum wage for women at $8.54 a week.

2. Women's Suffrage:

   • The 19th Amendment, approved in 1920, gave women the right to vote. This added about 26 million new voters to the polls.
   • The National American Woman Suffrage Association (NAWSA) was important in this movement. They grew their group from 13,000 members in 1890 to 2 million by 1920.

3. Health and Safety Regulations:

   • The Pure Food and Drug Act of 1906 set rules for food safety. This helped cut down foodborne illnesses by 30%.
   • By 1920, more than 40 states had worker's compensation laws to help workers who got injured on the job.

These changes made a big difference in American society. They improved workers' rights, helped create equality, and made public health a priority. This laid the foundation for even more progress in social justice in the years to come.