The Byzantine polycandelon from the 6th century is the earliest identifiable precursor of the chandelier.
Roman lamps were especially well-known for their decorative attributes.
Classic Dutch chandelier style is often used in churches and can sometimes still be seen there today.
The first rock crystal chandeliers appeared in the 17th century.
In 1676, a Brit named George Ravenscroft patented a new kind of glass for crystals: flint glass, which contains a lot of lead oxide.
The lead oxide makes glass clearer, easier to cut and prismatic.