Cambridge is the county town of Cambridgeshire and is primarily a university city. Residing on the River Cam, there is archaeological evidence of Bronze Age and Roman Britain settlements in the area. Whilst under Viking rule, Cambridge was an important trading centre and although the town charters were granted much later in the 12th century, city status was not officiated until 1951. Home to the universally revered University of Cambridge that was founded in 1209 and is consistently listed as one of the top five universities in the world. Exquisite architecture and undeniable handsome history abound; a tightly packed core of college buildings, picturesque gardens lead on to the river and green meadows surround the city. The stunning city skyline is dominated by university colleges, the spire of the Our Lady and the English Martyrs Church, the chimney of Addenbrooke's Hospital and St John's College Chapel tower. Cambridge is also home to the Cambridge Biomedical Campus, one of the largest biomedical research centres in the world, AstraZeneca and Papworth Hospital. Industry-wise, it’s at the heart of the international technology scene with software, bioscience and many start-up companies born of the local world-class university; more than 40% of the city’s workforce has a higher education qualification.