Linköping is a city in southern Sweden, known for its rich history and vibrant culture. It is the capital of Östergötland County and has a population of around 160,000 residents. The city is home to several educational institutions, including the prestigious Linköping University, which offers a wide range of programs and research opportunities. The city features a mix of modern and historical architecture, with landmarks such as the Linköping Cathedral, one of the largest churches in Sweden. Linköping is also recognized for its contributions to the aerospace industry, hosting the headquarters of Saab, a major defense and aerospace company.