Because their design is originated from Ancient Iran.
Persian rugs are made in Iran.
One of the main differences is the location where the rugs are made. Persian rugs are made in Iran while Oriental rugs are made in Asia. In addition, Persian are hand-knotted. However, one can generally say all Persian rugs are Oriental rugs but not all Oriental rugs are Persian.
because the Persians were a religious group that came from Iran who specialised in the craft of rug making
I am not too sure what you would like to know. Persian rugs would mean that it was made in Persia (modern day Iran), and Turkish would mean that it was made in Turkey.
persia/iran ...
Real Persian rugs are made in Iran and crafted from a special wool using a specific hand-knotting technique not found in any other carpets. There are tribal rugs and city rugs, each with a very specific "knots per square inch" (KPSI). Keep in mind that "Persian" is the ancient name of Iran. "Persian" rugs come from Iran, and not from Pakistan, India, Turkey. This site has a lot of great info about what to look for and what to avoid: http://www.oldcarpet.com/how_to_buy.htm
Iran, once called Persia, is famous for its rich history and culture. Persian Empire was the first modern empire extended from west of China to east Europe. Also Iran is famous for Persian Caviar, Persian Carpet and Persian Cat.
Iran exports many items, at present due to the embargo on many items. Iran mainly exports gas, oil, pistachios, cars, and Persian rugs.
Essie Sakhai has written: 'The story of carpets' -- subject(s): Oriental Rugs, Persian Rugs, Rugs, Oriental, Rugs, Persian 'Persian Rugs and Carpets'
All Persian rugs are Oriental rugs, but not all Oriental rugs are Persian. In order for an Oriental rug to be Persian, it must have been made in the country of Iran. Iranian rugs can come in all different types of styles, colors, weaves, etc. and it can take years of experience to be able to tell the difference, so it is really best to just inquire after the rug's country of origin when trying to figure out if an Oriental rug is Persian or not.
The territories of the Persian Empire were called satrapis.