The art of carpet weaving existed in Iran in ancient times, according to evidence such as the 2500-year-old Pazyryk carpet, dating back to 500 B.C., during the Achaemenid period.
The first documented evidence on the existence of Persian carpets came from Chinese texts dating back to the Sassanid period (224 – 641 AD).
This art underwent many changes in various eras of the Iranian history to an extent that it passed an upward trend before the Islamic era until the Mongol invasion of Persia. After the invasion, the art began to grow again during the Timurid and Ilkhanid dynasties.
With the passage of time, the materials used in carpets, including wool, silk and cotton, will decay. Therefore archaeologists are rarely able to make any particularly useful discoveries during archaeological excavations. What has remained from early times as evidence of carpet-weaving is nothing more than a few pieces of worn-out carpets. Such fragments do not help very much in recognizing the carpet-weaving characteristics of pre-Seljuk period (13th and 14th centuries AD) in Persia. ( wikipedia.com)
Many styles of rugs are unique to the area in which they are made. Rugs of this type must be acquired from their country of origin to be authentic. Persian rugs are made in Iran. The specific style of these rugs will vary with the area of the country that they are designed in. These rugs are typically made from wool or silk, and they are often thought to get more beautiful with time. Moroccan rugs are colorful creations made in Morocco. Though these are typically very durable rugs, they should be checked for colorfastness. The dyes in Moroccan rugs can sometimes bleed into the underlying floor. Oriental rugs are made from silk or wool and are created in Asian countries such as India and China. This type of rug is a significant investment, but should withstand the years well. For the look of an Oriental, Moroccan or Persian rug at a fraction of the price, there are also machine-made rugs available in a similar style.
Wool, silk and cotton are common materials for area rugs. However, there are a variety of materials suited to various uses and styles of dcor. For those who enjoy environmentally friendly materials, bamboo, sea grass and hemp are ideal. Colors are usually limited to neutral browns, beiges and muted greens. These can be used for both indoor and outdoor rugs, however they wear faster than thicker materials and should not be placed in high traffic areas. Contemporary designs can benefit from the unique look and feel of a flokati rug. These deep, furry wool rugs are soft and luxurious, and can be found in a variety of colors. This fluffy material can be difficult to clean, however, and may be ill-suited to families with young children or pets. Plynyl is a unique woven vinyl material that is very durable and easy to clean. For a softer feel at a fraction of the price, cotton flat weave is another material to consider