Due to its proximity to the Turkish-Syrian border, Kilis is an especially charming area with vineyards and olive groves. Originally known as Kilis in the Assyrian archives, it has been a very important town for commerce throughout history.
Though it is not fully conclusive, Kilis is believed to have existed since 3000 BC. The city lived through the Assyrian, Hurri-Mitani, Hittite, Persian, Roman and Byzantine eras.It was also occupied by Caliph Omer in 636 AD who used it as an outpost against the Byzantine empire. Kilis became part of County of Urfa during the Crusades and eventually lived under Seljuks and Mamelukes before being annexed by Ottoman Empire due to Yavuz Sultan Selim's rule.
Early in the 20th century, following the First World War, Kilis was regained from occupying forces upon treaty from December 7th of 1921 during the War of Liberation. The government designated it a province on June 6th, 1996.
The city is less than 10 kilometers from the Syrian border and it shares a 120 kilometer long border with that country. The mountains, Resul Osman and Kotal, are in this province while Afrin and Sabun Suyu brooks are its main water resources.
Canpolat Mosque is the earliest representative of Ottoman architecture in Kilis, built by a local ruler within 1500s. This mosque has a square plan and single dome. Akcurun Mosque was first constructed by Seyyide Fatma in 11334, which reflects Mameluke style. Ulu (Grand)Mosque is one of the most significant structures which was established 14th century, 1336 by Abdullah Bin Haci Halil.