Three people were killed, 200 works were damaged and three paintings including van Honthorst’s were totally destroyed.
The bomb was attributed to the Mafia, at the time engaged in threats to tourism.
While the dating of oil paint's origins are still under scrutiny, the technique of oil painting became widely popular during the fifteenth century.
The medium, which revolutionized painting, supplanted the previously popular medium of tempera paint and afforded artists with greater versatility in their compositions in terms of the coloristic effects they could convey.
The oil may be boiled with a resin, such as pine resin or frankincense, to create a varnish prized for its body and gloss.
Although oil paint was first used for Buddhist paintings by Indian and Chinese painters in western Afghanistan sometime between the fifth and tenth centuries, it did not gain popularity until the 15th century.
Certain differences, depending on the oil, are also visible in the sheen of the paints.This statue of the Buddha (left) in Afghanistan was decreed un-Islamic in 2001 and its destruction ordered.Gerrit van Honthorst's Adoration Of The Shepherds (right) was destroyed in car bomb detonation Two statues of the Buddha dominated the Bamiyan valley in Afghanistan for almost 1,500 years until jihadist Mullah Omar decreed them un-Islamic in 2001 and ordered their destruction.Scientists discovered one ancient sample of such art in a cave named Lapa do Santo in central-eastern Brazil.The region is home to Luzia, the oldest human skeleton found to date in South America.