Chives are a close relative to onion, garlic, leeks and scallions. Of these, chives have the most delicate flavour.
Chives are a member of the onion family and can grow wild in Europe, Asia and North America. They have been harvested from the wild for many millenniums though are thought to begin cultivation in the middle ages.
This herb only became popular in the 19th century after growing wild all over Europe and North America.