Detailed Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Q: Passage: The Yahya Kemal College is the first private high school in Skopje, Macedonia. The high school was established in 1996 and bears the name of the great Turkish writer and poet Yahya Kemal Beyatl, who was born in Skopje in 1884 and was one of the most eminent figures in Turkish literature. Shortly after the inauguration the school obtained the interest and appreciation of Macedonian people, because of the achievements and awards it gathered. The Turkish College, as it is popularly known, offers education at primary and high school level and is bestowed with the title of 'first and biggest private educational institution' in Macedonia. The number of enrolled students increases for few times each year. The college has six branches: in Avtokomanda (established 1996), Gostivar (established 1999), Struga (established 2002), Butel (established 2007), Strumica (established 2010), and Bogovinje, Tetovo (established 2011).
Link Information: The territory of Skopje has been inhabited since at least 4000 BC; Question: How old is the city where Yahya Kemal College is located as it's first private high school?
A:
Answer: 4000 BC;