Lights- Are they Made of Waves?

According to tpub.com "The exact nature of light is not fully understood, although scientists have been studying the subject for many centuries. Some experiments seem to show that light is composed of tiny particles, and some suggest that it is made up of waves." To begin with the Greeks originally thought that light was shone out of our eyes and Romans believed that light was made up of tiny particles which flew around in straight lines. Many Years later in the 1960's light was then thought to have been made up by waves. It is still being tested today.