"The term Persian Gulf is used in documents, publications and statements emanating from the (UN) Secretariat as the standard geographical designation for the sea area between the Arabian Peninsula and the Islamic Republic of Iran. The full term "Persian Gulf" is always used to designate that sea area when it is first referred to in a text and is repeated thereafter whenever necessary for the sake of clarity," Baeidinejad wrote on his twitter page on Wednesday.
According to the instructions of the UN Secretariat on May 14, 1999, the name of the waterway between the Islamic Republic of Iran and the Arabian Peninsula is "Persian Gulf" and it is necessary to use the full name of the Persian Gulf in the documents and publications of the United Nations, he said.
In another document dated 18 August 1994, the United Nations stressed that the full term "Persian Gulf" should be used in all cases instead of the shorter term "Gulf". Even if the phrase is repeated, the full phrase must be inserted (Persian Gulf), Baeidinejad said.
Iran designated April 30 as the National Persian Gulf Day to highlight the fact that the waterway has been referred to by historians and ancient texts as 'Persian' since the Achaemenid Empire was established in what is now modern day Iran.
In July 2009, archeological excavations in the Iranian port city of Siraf yielded new evidence confirming the antiquity of the Persian Gulf title.
The Iranian archeologists discovered Sassanid and early-Islamic residential strata as well as a number of intact amphoras used in sea trade during the Parthian, Abbasid and early Islamic eras, all referring to the waterway as the Persian Gulf.