East Jerusalem
In the Palestine Liberation Organization (PLO)'s Palestinian Declaration of Independence of 1988, Jerusalem is stated to be the capital of the State of Palestine. In 2000, the Palestinian Authority passed a law proclaiming Jerusalem as its capital, and in October 2002, this law was approved by chairman Yasser Arafat. Since that time Israel has shut down all offices and NGO organisations connected to the PLO in East Jerusalem, saying that the Oslo Accords do not permit the Palestinian National Authority to operate in Jerusalem. The Organisation of Islamic Cooperation (OIC) recognised East Jerusalem as capital of the State of Palestine on 13 December 2017.
Postage stamps and postal history of Palestine
After the Mamluks dislodged the Crusaders, annexed the Ayyubid principalities, and defeated the Mongol army in Anatolia, Baybars established the province of Syria (which included Palestine), with Damascus as its capital. At this point, imperial communications throughout Palestine were so efficient that Baybars would boast that he could play polo in Cairo and Damascus in the same week. An even more rapid carrier pigeon post was maintained between the two cities. Its use in forming a defensive league against the Crusaders was noted by Raymond of Agiles, who thought it rather "unsporting".