Why were the first factories located by running streams?

The first factories were located by running streams primarily to harness water power for machinery. Water wheels could efficiently convert the kinetic energy of flowing water into mechanical energy, which was essential for operating equipment like looms and mills. Additionally, proximity to water sources facilitated the transportation of raw materials and finished goods, making it a practical choice for early industrial operations. This strategic location helped optimize production processes during the initial stages of the Industrial Revolution.