History of Persian Rugs or you can say Oriental rugs is one of the most important clue for us to understand the value of this precious art.
“Persian rugs are the only practical pieces of fine art in the world. No other investment grows in beauty as it ages”
To trace the history of Persian rug is to follow a path of cultural growth of one of the greatest civilizations the world has ever known.
From being simply articles of need, as pure and simple floor entrance covering to protect the nomadic tribesmen from the cold and damp, the increasing beauty of the carpets found them new owners – kings and nobleman, those who looked for signs of wealth or adornment for fine buildings.
In palaces, famous building, rich homes and museums throughout the world a Persian carpet is amongst the most treasured possessions 
Oriental Rugs were probably first made by nomads to cover the earthen floor in their tents. It is not certain however, who invented carpet making.
It is quite possible that many peoples, none of whom were in contact with each other, began to make carpets at about the same time.
On the evidence of fragments found in ancient Egyptian and Mesopotamian tombs, we know that various forms of flat weaving were well developed more than 4000 years ago.
In history of Persian rug or in Oriental rugs history, Other evidence suggests that weaving of pile rugs existed in the Middle East and other parts of central, northwest, and eastern Asia long before 2000 BC.
Art Of Weaving
Art of weaving has long history starting from the ancient times. Leads of today’s tradition of oriental carpets, are found in ancient nomadic tribes of Central and West Asia, where winter was a big reason to adopt woolen carpets as a shield against sever weather conditions.
Besides it was an indispensable ingredient of their home decor while they kept moving up & down. Simply carpets were at once a roving home and a cushion against the bitter winter.
As I said weaving is one of the most ancient crafts in the world. It is mentioned in Old Testament and in Homer’s IIiad.
Documents about weaving exist from the period of the Sassanid Dynasty, which ruled Persia from the third century to the middle of the seventh century. Woolen carpets woven in Persia are referred to in the Chinese Sui Annals(A.D. 590-617).
And who can forget Cleopatra’s famous encounter with Caesar, arriving at his feet rolled up in an Oriental carpet?
Oldest Known Rug
Perhaps the oldest known hand-knotted oriental rug was excavated from the Altai Mountains of Central Asia near Pazryk in 1948.
It was found in a semi-frozen Scythin burial mound. This rug dates from the 4th century B.C. and bares the name “The Pazryk Carpet”. Today the rug is in the Hermitage Museum in Leningrad, Russia.
The carpet is sophisticated with floral, geometric, and pictorial designs. It has approximately 225 symmetrical knots per square inch.
The rug is approximately 2400 years old (fragmented) but shows a clear example of how good hand-knotted rugs were made and are still produced today. 
Here there is a motifs of The Pazryk Carpet
Richness of Persian Rugs
The combination of natural materials, natural dyes and hand-made Persian rug unique work of art, a symbol of goodness and peace, because rug posed warmth and patience in man, the kindness of human heart; In its patterns, colors, almost concluded – old traditions of secrecy and wisdom East
Today, rug weaving is by far the most widespread handicraft in Iran; it is also the best-known one abroad.
Persian rugs are renowned for their richness of color, variety of patterns and quality of design
Although weaving of Persian rugs is predominantly mechanized now, the most popular and expensive ones are still hand woven in many parts of Iran, such as Baluch Rugs, Shiraz Rugs, and Wiss Rugs etc still reflecting the rich art and culture of ancient Persia.
The Carpet Museum of Iran in Tehran houses some of the best works in the history of Persian rug weaving.
Honestly History of Persian Rugs include different Histories. Because In Persia, there are different villages different region created their own histories