It is considered as the golden age of a Capella music?

Madrigals

This was the golden age of the a cappella style. That means that singers sang without instruments. At this point in history, vocal music was still more important than instrumental music. Madrigals were popular during the Renaissance

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."