Artifacts show that the history of painting goes back to the pre-historic humans and spans all culture. Based on the geologic artifacts, the history of painting shows an ongoing river of creativity that continues up until now. At first, the main focus of painting is representational, religious and classical up until the 20th century which shows a lot of abstract and conceptual motifs.
Oil painting is the process of painting using pigments that are bound with a medium of drying oil. Linseed oil, poppy seed oil, walnut oil and safflower oil are the commonly used drying oils. Different oils confer various properties to the oil paint. The oil paint is a mixture of three things, such as pigment, binder and thinner. Pigment is the color element, while the binder is the liquid vehicle or carries which holds the ground-up pigment to be applied to the canvas. The thinner is usually added to the vicious pigment-oil mixture to make it easier to apply with a brush.
An artist may use several different oils in the same painting depending on the effects that the painter desires. The paint can also develop a particular consistency depending on the medium. The oil can be boiled with a resin to create varnish.
There is some evidence that says that oil painting started in Afghanistan. Surfaces for outdoors and shields were durable when painted in oil-based media than when painted in the traditions tempera. But the history of tempera, pigment mixed with either egg whites or the yolk then painted in a plastered section, and related media in Europe shows that oil painting was discovered there independently.
Some of the earlier works are still panel paintings on wood but at the end of the 15th century, canvas became more popular as the support is cheaper, easier to move and allowed larger works. Small cabinet paintings were also made on metals which are more expensive but very firm, allowing fine details.