Which groups of people were the first to work in factories? Select all that apply.

The first groups of people to work in factories during the Industrial Revolution were:

1. Women: Women made up a large portion of the factory workforce, particularly in the textile industry. They were often paid less than men and worked in poor conditions.

2. Children: Child labor was common during the Industrial Revolution. Children as young as six years old worked in factories. They were small enough to move in and around machinery, and were often paid less than adults.

3. Immigrants: Many immigrants, particularly from Ireland and Germany during the 19th century, worked in factories upon arriving in the United States. They were often willing to work for lower wages than native-born workers.

4. Rural Workers: Many people moved from rural areas to cities in search of work during the Industrial Revolution. These rural workers often ended up in factory jobs.

5. The Working Class: The working class, or proletariat, was a social class that was created by the Industrial Revolution. These were people who did not own their own businesses, but instead sold their labor to factory owners.

Please note that the specific groups can vary depending on the region and time period.