Final answer:
The Lowell System focused on hiring unmarried females for employment in textile mills.
Step-by-step explanation:
The Lowell System revolutionized employment hiring practices by focusing on hiring unmarried females. The Lowell textile mills in the 19th century hired young, unmarried women to work in the factories. These women were known as the 'Lowell Mill Girls' and they played a crucial role in the industrial revolution in the United States. The Lowell System provided employment opportunities for women who were seeking economic independence, but it also had its challenges and limitations.
Learn more about The Lowell System and employment of unmarried females