Someone named the star Vega. Who?

Answer 1

The name Vega (Alpha Lyra) was originally Wega from the Arabic word "Falling". This because Arab astronomers called the constellation Lyra "the falling eagle".

Answer 2

Ancient Arab astronomers named it Wega (which later evolved to Vega) which is translated as "falling". This is because in ancient Egypt Vega was in a constellation called "the falling eagle"

Answer 3

Vega has been in the night sky long before humans roamed the Earth - so no one discovered it.