 The wider metropolitan area is home to over 1,800,000 people, equating to around 33% of Scotland's population.The city has one of the highest densities of any locality in Scotland at 4,023/km2.Glasgow hosted the 2014 Commonwealth Games and the first European Championships in 2018; and is also well known in the sporting world for football (particularly the Old Firm rivalry between Celtic and Rangers), rugby, athletics, tennis, golf and swimming.