When were lyrics added to music?

Lyrics have been an integral part of music for centuries, with their origins tracing back to ancient civilizations. The earliest known examples of lyric poetry date back to ancient Greece around the 7th century BCE, where poets like Sappho set their Words to music. Over time, the combination of music and lyrics evolved through various cultures, leading to the development of genres such as Opera and popular song forms in the Middle Ages and Renaissance. By the 19th century, lyrics became a standard element in many musical styles, solidifying their role in contemporary music.