Knocknaheeny () is an electoral division and suburb in Cork city, located north of the River Lee on hills overlooking the city. It is a mainly residential area, and contains a number of terraced council housing estates. Apple's headquarters for Europe, the Middle East and Africa is located in the area, and employs about 3,000 people. Name and crest Knocknaheeny is translated from the Irish Cnoc na hAoine meaning "Hill of Friday". This is thought by some to reference the hill upon which Jesus Christ was crucified. The Knocknaheeny crest is blue and black in colour and includes the Irish title Cnoc na hAoine. The crest has three images: a reservoir, a windmill, and a swallow. The three stars represent Knocknaheeny, Hollyhill and Knocknacullen. History In the early 1970s, Cork City Council (then the Cork Corporation), began to develop housing estates on the areas. These were used to house and rehouse people from slightly older areas of the city, including those who grew up in neighbouring Churchfield, Farranree and Gurranabraher. These older townlands were been named after plants; for instance Knocknaheeny (the Hill of the Friday/Rushes), Knocknacullen (Hill of Holly), Knockfree (the Hill of Heather) and Shanakiel (Old Wood or Foxes Wood). In the late 1970s and 1980s, Knocknaheeny had a very young population. The local primary school, Scoil Mhuire ar Cnoc na hAoine (St. Mary's on the Hill), was granted extensions to cope with over-populated classrooms. Scoil Mhic Shuibhne (now Terence McSwiney Community College) was opened in 1979, the first VEC (Vocational Educational Committee) mixed school. By the end of the 1980s and into the 1990s, the school had a population of over 800 students. Like other local schools, enrollment has dropped and stabilized at under half that number, mainly due to changing demographics of an aging population and the Celtic tiger – an economic boom in Ireland from the mid-1990s to mid-2000s fueled by foreign investment – which enabled many families to relocate and purchase homes in newer estates in the Cork county region. As of 2009, approximately 4,500 people lived in Knocknaheeney. Some houses in Knocknaheeny have fallen into neglect. However Cork City Council have made efforts to improve this situation and development is now visible with a new Town Centre under construction on Harbour View Road. Residential areas are also popping up with housing now erected at the Reservoir (Rezza) stretching to Nash's Boreen and new