How old are irrigation systems?

Irrigation systems date back thousands of years, with evidence of their use in ancient civilizations such as Mesopotamia, Egypt, and the Indus Valley around 6,000 to 7,000 years ago. These early systems were developed to enhance agricultural productivity by controlling water supply to crops. Over time, irrigation techniques evolved, leading to the sophisticated systems we see today. Thus, irrigation systems are among the oldest agricultural practices in human history.