Uppsala is the capital of Uppsala County and the fourth largest city of Sweden, after Stockholm, Gothenburg and Malmö. It had 149,245 inhabitants in 2015. Located north of the capital Stockholm, it is also the seat of Uppsala Municipality. Since 1164, Uppsala has been the ecclesiastical centre of Sweden, being the seat of the Archbishop of the Church of Sweden. Uppsala is home to Scandinavias largest cathedral – Uppsala Cathedral. Founded in 1477, Uppsala University is the oldest centre of higher education in Scandinavia. Among many achievements, the Celsius scale for temperature was invented there.