This article deals with the history of the city of Glasgow, Scotland. See also Timeline of Glasgow history.
The area around Glasgow has hosted communities for millennia, with the River Clyde providing a natural location for fishing. The Romans later built outposts in the area and, to keep Roman Britannia separate from the Celtic and Pictish Caledonia, constructed the Antonine Wall, remains of which can still be seen in Glasgow today.
Glasgow itself was founded by the Christian missionary Saint Mungo in the 6th century. He established a church on the Molendinar Burn, where the present Glasgow Cathedral stands, and in the following years Glasgow became a religious centre.
By the 12th century Glasgow had been granted the status of what can now be called a city and the cathedral was the seat of the Bishops and (after 1472) the Archbishops of Glasgow. While there may have been wooden buildings on the site, the first stone cathedral was consecrated in about 1136 and replaced by a bigger one which was consecrated in 1197. Extensions and alterations to the cathedral buildings have continued ever since. The most recent addition was the Millennium Window unveiled on 3 June 1999.
After the Reformation in 1560, the Catholic rituals ended and the Catholic statues and symbols were removed or painted over. The large Cathedral served three different Presbyterian parishes simultaneously. The choir was used by the Inner High parish. The nave was used by the Outer High parish (later named St. Paul's). The crypt was used by Laigh parish.
In 1451 the University of Glasgow was founded by Papal Bull and established in religious buildings in the precincts of Glasgow Cathedral. By the start of the 16th century, Glasgow had become an important religious and academic city and by the 17th century the university had moved from the cathedral precincts to its own building in the High Street. After 1870 the university attained international stature. The University's teaching quality was assessed in 2009 to be among the top 10 in Britain, along with its reputation as a "research powerhouse."