Final answer:
The earliest manufacturing facilities during the Industrial Revolution were textile factories, which utilized mechanized inventions like the spinning jenny, and marked a major efficiency improvement over the cottage industry.
Step-by-step explanation:
The earliest manufacturing facilities of the Industrial Revolution primarily produced textiles. These early factories utilized mechanized technology such as the spinning jenny and power looms to greatly increase the efficiency of spinning wool and cotton. Innovations like Kay's flying shuttle, Hargreaves' spinning jenny, and Arkwright's water frame dramatically reduced the labor hours needed to produce cotton. The manufacturing of goods at home, characteristic of the early years of the Industrial Revolution, was known as the putting-out system or cottage industry. Following this, steam power was introduced, leading to textile mills that could produce fabric more quickly and of better quality than artisan methods.